SCOTUSfiles

SUPREME COURT OF THE UNITED STATES

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No. 21–454

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MICHAEL SACKETT, et ux., PETITIONERS v. ENVIRONMENTAL PROTECTION AGENCY, et al.

on writ of certiorari to the united states court of appeals for the ninth circuit

 Justice Thomas, with whom Justice Gorsuch joins, concurring.

 I join the Court’s opinion in full. The Clean Water Act (CWA) confines the Federal Government’s jurisdiction to “ ‘navigable waters,’ ” defined as “the waters of the United States.” 33 U. S. C. §§1311(a), 1362(7), (12). And the Court correctly holds that the term “waters” reaches “ ‘only those relatively permanent, standing or continuously flowing bodies of water “ ‘forming geographic[al] features’ ” that are described in ordinary parlance as “streams, oceans, rivers, and lakes.” ’ ” Ante, at 14 (quoting Rapanos v. United States, 547 U. S. 715, 739 (2006) (plurality opinion)). It also correctly holds that for a wetland to fall within this definition, it must share a “ ‘continuous surface connection to bodies that are “waters of the United States” in their own right’ ” such that “ ‘there is no clear demarcation between “waters” and wetlands.’ ” Ante, at 21 (quoting Rapanos, 547 U. S., at 742 (plurality opinion)).

 However, like the Rapanos plurality before it, the Court focuses only on the term “waters”; it does not determine the extent to which the CWA’s other jurisdictional terms—“navigable” and “of the United States”—limit the reach of the statute. Ante, at 14–18; Rapanos, 547 U. S., at 731 (plurality opinion). I write separately to pick up where the  Court leaves off.

I

 The CWA’s jurisdictional terms have a long pedigree and are bound up with Congress’ traditional authority over the channels of interstate commerce. Solid Waste Agency of Northern Cook Cty. v. Army Corps of Engineers, 531 U. S. 159, 168, and n. 3, 172, 173–174 (2001) (SWANCC). That traditional authority was limited in two ways. First, the water had to be capable of being used as a highway for interstate or foreign commerce. Second, Congress could regulate such waters only for purposes of their navigability—by, for example, regulating obstructions hindering navigable capacity. By the time of the CWA’s enactment, the New Deal era arguably had relaxed the second limitation; Congress could regulate navigable waters for a wider range of purposes. But, critically, the statutory terms “navigable waters,” “navigable waters of the United States,” and “waters of the United States” were still understood as invoking only Congress’ authority over waters that are, were, or could be used as highways of interstate or foreign commerce. The CWA was enacted, and must be understood, against that key backdrop.

A

 As the Court correctly states, “land and water use lies at the core of traditional state authority.” Ante, at 23; see also ante, at 2. Prior to Independence, the Crown possessed sovereignty over navigable waters in the Colonies, sometimes held in trust by colonial authorities. See R. Adler, The Ancient Mariner of Constitutional Law: The Historical, Yet Declining Role of Navigability, 90 Wash. U. L. Rev. 1643, 1656–1659 (2013); R. Walston, The Federal Commerce and Navigation Powers: Solid Waste Agency of Northern Cook County’s Undecided Constitutional Issue, 42 Santa Clara L. Rev. 699, 721 (2002) (Walston). Upon Independence, this  sovereignty was transferred to each of the 13 fully sovereign States. See Martin v. Lessee of Waddell, 16 Pet. 367, 410 (1842) (“[W]hen the Revolution took place, the people of each state became themselves sovereign; and in that character hold the absolute right to all their navigable waters and the soils under them for their own common use, subject only to the rights since surrendered by the Constitution to the general government”). Thus, today, States enjoy primary sovereignty over their waters, including navigable waters—stemming either from their status as independent sovereigns following Independence, ibid., or their later admission to the Union on an equal footing with the original States, see Lessee of Pollard v. Hagan, 3 How. 212, 230 (1845) (“The shores of navigable waters, and the soils under them, were not granted by the Constitution to the United States, but were reserved to the states respectively. . . . The new states have the same rights, sovereignty, and jurisdiction over this subject as the original states”); see also M. Starr, Navigable Waters of the United States—State and National Control, 35 Harv. L. Rev. 154, 169–170 (1921). The Federal Government therefore possesses no authority over navigable waters except that granted by the Constitution.

 The Federal Government’s authority over certain navigable waters is granted and limited by the Commerce Clause, which grants Congress power to “regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes.” Art. I, §8, cl. 3. From the beginning, it was understood that “[t]he power to regulate commerce, includes the power to regulate navigation,” but only “as connected with the commerce with foreign nations, and among the states.” United States v. Coombs, 12 Pet. 72, 78 (1838) (Story, J., for the Court); accord, Gibbons v. Ogden, 9 Wheat. 1, 190 (1824) (“All America understands . . . the word ‘commerce,’ to comprehend navigation. It was so un derstood, and must have been so understood, when the constitution was framed”); see also R. Barnett, The Original Meaning of the Commerce Clause, 68 U. Chi. L. Rev. 101, 125–126 (2001) (Barnett); R. Natelson, The Legal Meaning of “Commerce” in the Commerce Clause, 80 St. John’s L. Rev. 789, 807–810 (2006). In fact, “shipping . . . was at that time the indispensable means for the movement of goods.” Barnett 123. The Commerce Clause thus vests Congress with a limited authority over what we now call the “channels of interstate commerce.” United States v. Lopez, 514 U. S. 549, 558–559 (1995); see also American Trucking Assns., Inc. v. Los Angeles, 569 U. S. 641, 656–657 (2013) (Thomas, J., concurring).

 This federal authority, however, does not displace States’ traditional sovereignty over their waters. “The power to regulate commerce comprehends the control for that purpose, and to the extent necessary, of all the navigable waters of the United States which are accessible from a State other than those in which they lie.” Gilman v. Philadelphia, 3 Wall. 713, 724–725 (1866) (emphasis added). And, traditionally, this limited authority was confined to regulation of the channels of interstate commerce themselves. Corfield v. Coryell, 6 F. Cas. 546, 550–551 (No. 3,230) (CC ED Pa. 1823) (Washington, J., for the Court). It encompassed only “the power to keep them open and free from any obstruction to their navigation” and “to remove such obstructions when they exist.” Gilman, 3 Wall., at 725. Thus, any activity that “interferes with, obstructs, or prevents such commerce and navigation, though done on land, may be punished by congress.” Coombs, 12 Pet., at 78. But, activities that merely “affect” water-based commerce, such as those regulated by “[i]nspection laws, quarantine laws, health laws of every description, as well as laws for regulating the internal commerce of a State,” are not within Congress’ channels-of-commerce authority. Gibbons, 9 Wheat., at 203; see also Corfield, 6 F. Cas., at 550.

  This understanding of the limits of Congress’ channels-of-commerce authority prevailed through the end of the 19th century. The Court’s cases consistently recognized that Congress has authority over navigable waters for only the limited “purpose of regulating and improving navigation.” Gibson v. United States, 166 U. S. 269, 271–272 (1897); see also Port of Seattle v. Oregon & Washington R. Co., 255 U. S. 56, 63 (1921) (“The right of the United States in the navigable waters within the several States is limited to the control thereof for purposes of navigation”). And, this Court was careful to reaffirm that “technical title to the beds of the navigable rivers of the United States is either in the States in which the rivers are situated, or in the owners of the land bordering upon such rivers” as determined by “local law.” United States v. Chandler-Dunbar Water Power Co., 229 U. S. 53, 60 (1913).

 The River and Harbor Acts of 1890, 1894, and 1899 illustrate the limits of the channels-of-commerce authority. The 1890 Act authorizes the Secretary of War to “prohibi[t]” “the creation of any obstruction, not affirmatively authorized by law, to the navigable capacity of any waters, in respect of which the United States has jurisdiction.” §10, 26 Stat. 454. The 1894 Act made it unlawful to deposit matter into “any harbor or river of the United States” that the Federal Government has appropriated money to improve and prohibited injuring improvements built by the United States in “any of its navigable waters.” §6, 28 Stat. 363.

 Congress consolidated and expanded these authorities in the 1899 Act. Section 10 of the Act prohibits “[t]he creation of any obstruction . . . to the navigable capacity of any of the waters of the United States,” requires a permit to build “structures in any . . . water of the United States,” and makes it unlawful “to excavate or fill, or in any manner to alter or modify the course, location, condition, or capacity” of any water, “within the limits of any breakwater, or of the channel of any navigable water of the United States.” 30  Stat. 1151 (codified, as amended, at 33 U. S. C. §403). In addition, §13 of the Act, sometimes referred to as the “Refuse Act,” prohibits throwing, discharging, or depositing “any refuse matter . . . into any navigable water of the United States, or into any tributary of any navigable water from which the same shall float or be washed into such navigable water.” 30 Stat. 1152 (codified, as amended, at 33 U. S. C. §407). Section 13 also prohibits depositing material “on the bank of any navigable water, or on the bank of any tributary of any navigable water, where the same shall be liable to be washed into such navigable water . . . whereby navigation shall or may be impeded or obstructed.” Ibid.

 Three things stand out about these provisions. First, they use the terms “navigable water,” “water of the United States,” and “navigable water of the United States” interchangeably. 33 U. S. C. §§403 and 407; see also V. Albrecht & S. Nickelsburg, Could SWANCC Be Right? A New Look at the Legislative History of the Clean Water Act, 32 Env. L. Rev. 11042, 11044 (2002) (Albrecht & Nickelsburg). As a result, courts have done the same in decisions interpreting the River and Harbor Acts. See, e.g., United States v. Stoeco Homes, Inc., 498 F. 2d 597, 608–609 (CA3 1974); New England Dredging Co. v. United States, 144 F. 932, 933–934 (CA1 1906); Blake v. United States, 181 F. Supp. 584, 587–588 (ED Va. 1960).

 Second, Congress asserted its authority only to the extent that obstructions or refuse matter could impede navigation or navigable capacity. Thus, in United States v. Rio Grande Dam & Irrigation Co., 174 U. S. 690 (1899), this Court recognized that any “act sought to be enjoined” under the 1890 Act must be “one which fairly and directly tends to obstruct (that is, interfere with or diminish) the navigable capacity of a stream.” Id., at 709; accord, Lake Shore & Michigan Southern R. Co. v. Ohio, 165 U. S. 365, 369 (1897) (holding  that federal jurisdiction over “navigable waters” was limited to preventing “interfering with commerce”). Similarly, in Wisconsin v. Illinois, 278 U. S. 367 (1929), this Court interpreted the 1899 Act in light of the constitutional prohibition on Congress “arbitrarily destroy[ing] or impair[ing] the rights of riparian owners by legislation which has no real or substantial relation to the control of navigation or appropriateness to that end.” Id., at 415.1 The touchstone, thus, remained actual navigation.

 Third, §13 of the Act requires some form of surface water connection between a tributary and traditionally navigable waters. See 33 U. S. C. §407 (prohibiting depositing refuse “into any tributary of any navigable water from which the same shall float or be washed into such navigable water”). To be sure, the Refuse Act also prohibits leaving refuse “on the bank of any navigable water, or on the bank of any tributary of any navigable water, where the same shall be liable to be washed into such navigable water.” Ibid. But, this prohibition reflects nothing more than Congress’ traditional authority to regulate acts done on land that directly impair the navigability of traditionally navigable waters. See Rio Grande Dam & Irrigation Co., 174 U. S., at 708 (explaining that the Act reaches “any obstruction to the navigable capacity, and anything, wherever done or however  done, . . . which tends to destroy the navigable capacity of one of the navigable waters of the United States”); see also Northern Pacific R. Co. v. United States, 104 F. 691, 693 (CA8 1900); Coombs, 12 Pet., at 78. It does not mean that the land itself is a navigable water.2

 The history of federal regulation of navigable waters demonstrates that Congress’ authority over navigation, as traditionally understood, was narrow but deep. It only applied to a discrete set of navigable waters and could only be used to keep those waters open for interstate commerce. See Port of Seattle, 255 U. S., at 63; Rio Grande Dam & Irrigation Co., 174 U. S., at 709. Yet, where Congress had authority, it displaced the States’ traditional sovereignty over their navigable waters and allowed Congress to regulate activities even on land that could directly cause obstructions to navigable capacity. Gilman, 3 Wall., at 724–725; Coombs, 12 Pet., at 78.

 In light of the depth of this new federal power, it was carefully limited—mere “effects” on interstate commerce were not sufficient to trigger Congress’ navigation authority. As one District Court presciently observed in interpreting the term “navigable waters of the United States” in the Steamboat Act of 1838:

“To make a particular branch of commerce or trade within a state, a part of the commerce among the several states, it would not be sufficient that it was remotely connected with that commerce among the several states; for almost everything and every occupation and employment in life are remotely connected with  that commerce or navigation. And if congress has the right to regulate every employment or pursuit thus remotely connected with that commerce, of which they have the control, then it has the right to regulate nearly the entire business and employment of the citizens of the several states. . . . Yet, if congress has the power to regulate all these employments, and a thousand others equally connected with that commerce, then it can regulate nearly all the concerns of life, and nearly all the employments of the citizens of the several states; and the state governments might as well be abolished. It is not sufficient, then, that navigation, or trade, or business of any kind, within a state, be remotely connected, or, perhaps, connected at all with ‘commerce with foreign nations, or among the several states, or with the Indian tribes,’ it should be a part of that commerce, to authorize congress to regulate it.” The James Morrison, 26 F. Cas. 579, 581 (No. 15,465) (DC Mo. 1846).

The Court’s observation that “federal regulation was largely limited to ensuring that ‘traditional navigable waters’ . . . remained free of impediments,” ante, at 2, thus does no more than reflect the original understanding of the federal authority over navigable waters.

B

 As noted above, the scope of Congress’ authority over waters was defined by the traditional concept of navigability, imported with significant modifications from the English common law.3 Thus, Congress could regulate only “naviga ble waters.” Consistent with that backdrop, the term “navigable waters”—used interchangeably with “waters of the United States” and “navigable waters of the United States”—referred to the waters subject to Congress’ traditional authority over navigable waters until the enactment of the CWA.

1

 The term “navigable waters” has been in use since the founding to refer to the highways of commerce that were key to the Nation’s development. Great cities like Philadelphia and St. Louis emerged at first as commercial ports along these navigable waters. The Framers recognized that “Providence has in a particular manner blessed” our country with “[a] succession of navigable waters” that “bind [the Nation] together; while the most noble rivers in the world, running at convenient distances, present [Americans] with highways for the easy communication of friendly aids and the mutual transportation and exchange of their various commodities.” The Federalist No. 2, p. 38 (C. Rossiter ed. 1961) (J. Jay). These “vast rivers, stretching far inland” have been of “transcendent importance” to our Nation’s economic expansion by forming “great highways” for commerce. L. Houck, Law of Navigable Rivers xiii (1868).

 This Court authoritatively set out the scope of the term “navigable waters of the United States” in the seminal case of The Daniel Ball, 10 Wall. 557 (1871). That case arose under the Steamboat Act of 1838, which prohibited the transportation of goods “upon the bays, lakes, rivers, or other navigable waters of the United States.” §2, 5 Stat.  304. This Court held that the term “navigable” refers to waters that are “navigable in fact,” meaning that “they are used, or are susceptible of being used, in their ordinary condition, as highways for commerce, over which trade and travel are or may be conducted in the customary modes of trade and travel on water.” The Daniel Ball, 10 Wall., at 563. The Court then explained that navigable waters are “of the United States,” “in contradistinction from the navigable waters of the States, when they form in their ordinary condition by themselves, or by uniting with other waters, a continued highway over which commerce is or may be carried on with other States or foreign countries in the customary modes in which such commerce is conducted by water.” Ibid.; see also The Montello, 11 Wall. 411, 415 (1871) (“If . . . the river is not of itself a highway for commerce with other States or foreign countries, or does not form such highway by its connection with other waters, and is only navigable between different places within the State, then it is not a navigable water of the United States, but only a navigable water of the State”). It is this “junction” between waters to “for[m] a continued highway for commerce, both with other States and with foreign countries,” that brings the water “under the direct control of Congress in the exercise of its commercial power.” The Daniel Ball, 10 Wall., at 564. The definition of a “navigable water of the United States” was thus linked directly to the limits on Congress’ commerce authority: A navigable water of the United States was one that was ordinarily used for interstate or foreign commerce.

 Wetlands were generally excluded from this definition. In Leovy v. United States, 177 U. S. 621 (1900), for example, the Court employed the Daniel Ball test to hold that the term “navigable waters of the United States,” as used in the 1890 River and Harbor Act, did not “prevent the exercise by the State of Louisiana of its power to reclaim swamp and overflowed lands by regulating and controlling the current  of small streams not used habitually as arteries of interstate commerce.” 177 U. S., at 632. The Court observed that applying the Act to wetlands reclamation “would extend the paramount jurisdiction of the United States over all the flowing waters in the States.” Id., at 633. “If such were the necessary construction of the” term “navigable water,” the Court explained, the River and Harbor Act’s “validity might well be questioned.” Ibid. But, the Court declined to interpret the Act to reach the wetlands, because it recognized that the phrase “navigable waters of the United States” encompassed only those waters reached by the traditional channels-of-commerce authority:

“When it is remembered that the source of the power of the general government to act at all in this matter arises out of its power to regulate commerce with foreign countries and among the States, it is obvious that what the Constitution and the acts of Congress have in view is the promotion and protection of commerce in its international and interstate aspect, and a practical construction must be put on these enactments as intended for such large and important purposes.” Ibid.

The Court thus held that the mere use of a wetland by fishermen was not sufficient to make the wetland a navigable water of the United States; it “was not shown that passengers were ever carried through it, or that freight destined to any other State than Louisiana, or, indeed, destined for any market in Louisiana, was ever, much less habitually, carried through it.” Id., at 627.4

  The Daniel Ball test, with minor variations, marked the limits of federal jurisdiction over waters up to the enactment of the CWA. For instance, in Economy Light & Power Co. v. United States, 256 U. S. 113 (1921), the Court applied The Daniel Ball but expanded it to hold that the River and Harbor Act of 1899 reaches waters that are not currently capable of supporting interstate commerce, though they once did. 256 U. S., at 123–124. And, in United States v. Appalachian Elec. Power Co., 311 U. S. 377 (1940), the Court applied The Daniel Ball to reach waters that could be made navigable with reasonable and feasible improvement. 311 U. S., at 408–409. While these cases expanded the outer boundaries of the term, creating an expanded form of the Daniel Ball test, they reflect the Court’s longstanding view that the statutory term “navigable water” required application of the Daniel Ball test.

2

 In the New Deal era, as is well known, this Court adopted a greatly expanded conception of Congress’ commerce authority by permitting Congress to regulate any private intrastate activity that substantially affects interstate commerce, either by itself or when aggregated with many similar activities. See Wickard v. Filburn, 317 U. S. 111, 127–129 (1942); see also United States v. Darby, 312 U. S. 100, 119 (1941). Yet, this expansion did not fundamentally change the Court’s understanding that the term “navigable waters” referred to waters used for interstate commerce. Thus, in Appalachian Elec., the Court continued to apply the concept of navigability to determine the scope of Congress’ Commerce Clause authority to require licenses under  the Federal Water Power Act for the construction of hydroelectric dams in “navigable waters.” 311 U. S., at 406–410. Only after applying the Daniel Ball definition to determine that the river in question was navigable did the Court hold that Congress had plenary authority over the erection of structures in the river, regardless of whether the structure actually impeded navigability. 311 U. S., at 423–426. While this represented an expansive application of the old concept that Congress can prevent obstructions to navigable capacity, see supra, at 4, 7–8, Appalachian Elec. made clear that the term “navigable waters” remained tethered to Congress’ traditional channels-of-commerce authority—not to the broader conceptions of the commerce authority adopted by the Court at that time.

 The next year, in Oklahoma ex rel. Phillips v. Guy F. Atkinson Co., 313 U. S. 508 (1941), the Court reaffirmed that the term “navigable waters,” this time as used in the Flood Control Act of 1936, was to be interpreted in light of the expanded Daniel Ball test. 313 U. S., at 522–525. Significantly, Oklahoma was decided mere months after Darby, one of the most significant cases expanding the scope of the commerce authority. 312 U. S., at 119. However, Oklahoma did not so much as mention Darby in construing the jurisdiction Congress conveyed in the term “navigable waters.” Instead, it cited Darby only in passing and to support the argument that, once a river is deemed navigable under the channels-of-commerce authority, Congress has authority to protect “the nation’s arteries of commerce” by regulating intrastate activities on nonnavigable parts and tributaries of the navigable river lest such activities “impai[r] navigation itself.” Oklahoma, 313 U. S., at 525. This was nothing more than an application of the principle that Congress can regulate activities that obstruct navigable capacity. Thus, even as the Court expanded the Commerce Clause in other contexts, it continued to understand that the term “navigable waters” refers solely to the aquatic  channels of interstate commerce over which Congress traditionally exercised authority.

3

 This understanding of the term “navigable waters”—i.e., as shorthand for waters subject to Congress’ authority under the Daniel Ball test—persisted up to the enactment of the CWA. See, e.g., Stoeco Homes, Inc., 498 F. 2d, at 608–609; United States v. Joseph G. Moretti, Inc., 478 F. 2d 418, 428–429 (CA5 1973); see also D. Guinn, An Analysis of Navigable Waters of the United States, 18 Baylor L. Rev. 559, 579 (1966) (“[T]he test of The Daniel Ball and Appalachian Power Co. are religiously cited as being the basis for the holding on the issue of navigability”). As a court observed near the time of the CWA’s enactment, “[a]lthough the definition of ‘navigability’ laid down in The Daniel Ball has subsequently been modified and clarified, its definition of ‘navigable water of the United States,’ insofar as it requires a navigable interstate linkage by water, appears to remain unchanged.” Hardy Salt Co. v. Southern Pacific Transp. Co., 501 F. 2d 1156, 1167 (CA10 1974) (citations omitted). This Court’s cases, too, continued to apply traditional navigability concepts in cases under the River and Harbor Acts right up to the CWA’s enactment. See United States v. Standard Oil Co., 384 U. S. 224, 226 (1966) (holding that spilling oil in a navigable water was prohibited by the Refuse Act (§13 of the 1899 Act) because “its presence in our rivers and harbors is both a menace to navigation and a pollutant”); United States v. Republic Steel Corp., 362 U. S. 482, 487–491 (1960) (“diminution of the navigable capacity of a waterway” required for violation of the Refuse Act). Thus, on the eve of the CWA’s enactment, the term “navigable waters” meant those waters that are, were, or could be used as highways of interstate or foreign commerce.

 II

 This history demonstrates that Congress was not writing on a blank slate in the CWA, which defines federal jurisdiction using the same terms used in the River and Harbor Acts: “navigable waters” and “the waters of the United States,” 33 U. S. C. §§1311(a), 1362(7), (12). As explained above, courts and Congress had long used the terms “navigable water,” “navigable water of the United States,” and “the waters of the United States” interchangeably to signify those waters to which the traditional channels-of-commerce authority extended. See supra, at 6. The terms “navigable waters” and “waters of the United States” shared a core requirement that the water be a “highway over which commerce is or may be carried,” with the term “of the United States” doing the independent work of requiring that such commerce “be carried on with other States or foreign countries.” The Daniel Ball, 10 Wall., at 563. The text of the CWA thus reflects the traditional balance between federal and state authority over navigable waters, as set out by The Daniel Ball. It would be strange indeed if Congress sought to effect a fundamental transformation of federal jurisdiction over water through phrases that had been in use to describe the traditional scope of that jurisdiction for well over a century and that carried a well-understood meaning.5

  The Army Corps of Engineers originally understood the CWA in precisely this way. In its 1974 regulation establishing the first CWA §404 permitting program,6 the Corps interpreted the term “the waters of the United States” to establish jurisdiction over the traditional navigable waters as determined by the expanded Daniel Ball test, noting also that the term is limited by Congress’ navigation authority. 39 Fed. Reg. 12115. The Corps anchored its jurisdiction in the expanded Daniel Ball test, defining “navigable waters” to include “those waters of the United States which are subject to the ebb and flow of the tide, and/or are presently, or have been in the past, or may be in the future susceptible for use for purposes of interstate or foreign commerce.” 33 CFR §209.120(d)(1) (1974); see also §§209.260(d)(1)–(3) (requiring “[p]ast, present, or potential presence of interstate or foreign commerce,” “[p]hysical capabilities for use by commerce,” and “[d]efined geographic limits of the water body”). The regulations also made clear that traditional navigability factors were the baseline for CWA jurisdiction: “It is the water body’s capability of use by the public for purposes of transportation or commerce which is the determinative factor.” §209.260(e)(1).

 Almost immediately, however, a few courts and the recently created Environmental Protection Agency (EPA) rejected this interpretation. Instead, they interpreted the CWA to assert the full extent of Congress’ New Deal era authority to regulate anything that substantially affects interstate commerce by itself or in the aggregate. See United States v. Ashland Oil & Transp. Co., 504 F. 2d 1317, 1323–1329 (CA6 1974); P. F. Z. Properties, Inc. v. Train, 393 F. Supp. 1370, 1381 (DC 1975); National Resource Defense Council, Inc. v. Callaway, 392 F. Supp. 685, 686 (DC 1975); United States v. Holland, 373 F. Supp. 665, 669, 672–674 (MD Fla. 1974); 40 CFR §125.1(o) (1974) (initial EPA CWA definition). The courts that reached this conclusion relied almost exclusively on legislative history and statutory purpose. See, e.g., Holland, 373 F. Supp., at 672 (“The foregoing [legislative history] compels the Court to conclude that the former test of navigability was indeed defined away in the [CWA]”). But signals from legislative history cannot rebut clear statutory text, and the text of the CWA employs words that had long been universally understood to reach only those waters subject to Congress’ channels-of- commerce authority. See supra, at 15.

 These courts and the EPA had only one textual hook for their interpretation: In defining the term “navigable waters” as “the waters of the United States,” the CWA seemed to drop the term “navigable” from the operative part of the definition. Seizing on this phrasing, the EPA’s general counsel asserted in 1973 that “the deletion of the word ‘navigable’ eliminates the requirement of navigability. The only remaining requirement, then, is that pollution of waters covered by the bill must be capable of affecting interstate commerce.” 1 EPA Gen. Counsel Op. 295 (1973). Similarly, the District Court that vacated the Corps’ original CWA definition held, without any analysis or citation, that the term “the waters of the United States” in the CWA is “not limited to the traditional tests of navigability.” National Resource Defense Council, 392 F. Supp., at 671.

 That interpretation cannot be right. For one, the terms “navigable waters” and “the waters of the United States” had long been used synonymously by courts and Congress. The CWA simply used the terms in the same manner as the River and Harbor Acts. Moreover, no source prior to the CWA had ever asserted that the term “the waters of the United States,” when not modified by “navigable,” reached any water that may affect interstate commerce. Instead, The Daniel Ball made clear that “[t]he phrase ‘waters of the  United States, in contradistinction from the navigable waters of the States,’ . . . distinguishes interstate from intrastate waters.” Albrecht & Nickelsburg 11049 (quoting The Daniel Ball, 10 Wall., at 563); accord, 1 A. Knauth, Benedict on Admiralty §44, p. 96 (6th ed. 1940) (“The inland lakes of various States are navigable but, having no navigable outlet linking them with our system of water-ways, have never been held to be public waters of the United States” (emphasis added)). The text of the CWA extends jurisdiction to “navigable waters,” and—precisely tracking The Daniel Ball—clarifies that it reaches “the waters of the United States,” rather than the navigable waters of the States.

 Thus, the CWA’s use of the phrase “the waters of the United States” reinforces, rather than lessens, the need for a water to be at least part of “a continued highway over which commerce is or may be carried on with other States or foreign countries in the customary modes in which such commerce is conducted by water.” The Daniel Ball, 10 Wall., at 563. At most, the omission of the word “navigable” signifies that the CWA adopts the expanded Daniel Ball test—that includes waters that are, have been, or can be reasonably made navigable in fact—in its statutory provisions. The Federal Government’s interpretation, by contrast, renders the use of the term “navigable” a nullity and involves an unprecedented and extravagant reading of the well-understood term of art “the waters of the United States.” See Albrecht & Nickelsburg 11049 (“EPA’s conclusion is ahistorical as well as illogical”).7 “[T]he waters of the  United States” does not mean any water in the United States.

 There would be little need to explain any of this if the agencies had not effectively flouted our decision in SWANCC, which restored navigability as the touchstone of federal jurisdiction under the CWA, and rejected the key arguments supporting an expansive interpretation of the CWA’s text. We expressly held that Congress’ “use of the phrase ‘waters of the United States’ ” in the CWA is not “a basis for reading the term ‘navigable waters’ out of the statute”—directly contradicting the EPA’s 1973 interpretation, upon which every subsequent expansion of its authority has been based. 531 U. S., at 172. We also held that the Corps did not “mist[ake] Congress’ intent” when it promulgated its 1974 regulations, under which “ ‘the determinative factor’ ” for navigability was a “ ‘water body’s capability of use by the public for purposes of transportation or commerce.’ ” Id., at 168 (quoting 33 CFR §209.260(e)(1)). In doing so, we rejected reliance on the CWA’s “ambiguous” legislative history, which the EPA had used “to expand the definition of ‘navigable waters’ ” to the outer limit of the commerce authority as interpreted in the New Deal. 531 U. S., at 168, n. 3.8 Instead, we made clear that Congress did not intend  “to exert anything more than its commerce power over navigation.” Ibid.; see also id., at 173 (rejecting the Government’s argument that the CWA invokes “Congress’ power to regulate intrastate activities that ‘substantially affect’ interstate commerce”).

 SWANCC thus interpreted the text of the CWA as implementing Congress’ “traditional jurisdiction over waters that were or had been navigable in fact or which could reasonably be so made”—i.e., the expanded Daniel Ball test. 531 U. S., at 172 (citing Appalachian Elec., 311 U. S., at 407–408).9 And, consistent with the traditional link between navigability and the limits of Congress’ regulatory  authority, SWANCC noted that any broader interpretation would raise “significant constitutional and federalism questions” and “result in a significant impingement of the States’ traditional and primary authority over land and water use.” 531 U. S., at 174. Both in its holdings and in its mode of analysis, SWANCC cannot be reconciled with the agencies’ sharp departure from the centuries-old understanding of navigability and the traditional limits of Congress’ channels-of-commerce authority.

 In sum, the plain text of the CWA and our opinion in SWANCC demonstrate that the CWA must be interpreted in light of Congress’ traditional authority over navigable waters. See Albrecht & Nickelsburg 11055 (noting that SWANCC “states more than once that Congress’ use of the term ‘navigable waters’ signifies that Congress intended to exercise its traditional authority over navigable waters, and not its broader power over all things that substantially affect commerce”). Yet, for decades, the EPA (of its own license) and the Corps (under the compulsion of an unreasoned and since discredited District Court order) have issued substantively identical regulatory definitions of “the waters of the United States” that completely ignore navigability and instead expand the CWA’s coverage to the outer limits of the Court’s New Deal-era Commerce Clause precedents.

III

 This case demonstrates the unbounded breadth of the jurisdiction that the EPA and the Corps have asserted under the CWA. The regulatory definition applied to the Sacketts’ property declares “intrastate” waters, wetlands, and various other wet things to be “waters of the United States” if their “use, degradation or destruction . . . could affect inter state or foreign commerce.” 40 CFR §230.3(s)(3) (2008) (emphasis added). To leave no doubt that the agencies have entirely broken from traditional navigable waters, they give several examples of qualifying waters: those that “are or could be used by interstate or foreign travelers for recreational or other purposes,” those “[f]rom which fish or shellfish are or could be taken and sold in interstate or foreign commerce,” those that “are used or could be used for industrial purposes by industries in interstate commerce,” “[t]ributaries of ” any such waters, and “[w]etlands adjacent to” any such waters. §§230.3(s)(3)(i)–(iii), (5), (7). This definition and others like it are premised on the fallacy repudiated in SWANCC: that the text of the CWA expands federal jurisdiction beyond Congress’ traditional “commerce power over navigation.” 531 U. S., at 168, n. 3.

 Nonetheless, under these boundless standards, the agencies have “asserted jurisdiction over virtually any parcel of land containing a channel or conduit . . . through which rainwater or drainage may occasionally or intermittently flow,” including “storm drains, roadside ditches, ripples of sand in the desert that may contain water once a year, and lands that are covered by floodwaters once every 100 years.” Rapanos, 547 U. S., at 722 (plurality opinion). The agencies’ definition “engulf[s] entire cities and immense arid wastelands” alike. Ibid. Indeed, because “the entire land area of the United States lies in some drainage basin, and an endless network of visible channels furrows the entire surface,” “any plot of land containing such a channel may potentially be regulated.” Ibid.

 If this interpretation were correct, the only prudent move for any landowner in America would be to ask the Federal Government for permission before undertaking any kind of development. See Tr. of Oral Arg. 86, 116–117. This regime turns Congress’ traditionally limited navigation authority on its head. The baseline under the Constitution, the CWA, and the Court’s precedents is state control of waters. See SWANCC, 531 U. S., at 174 (reaffirming “the States’ traditional and primary power over land and water use”); Leovy, 177 U. S., at 633 (repudiating an interpretation of the 1899 Act that would render practically every “creek or stream in the entire country” a “navigable water of the United States” and “subject the officers and agents of a State . . . to fine and imprisonment” for draining a swamp “unless permission [was] first obtained from the Secretary of War”). By contrast, the agencies’ interpretation amounts to a federal police power, exercised in the most aggressive possible way.

 Thankfully, applying well-established navigability rules makes this a straightforward case. The “wetlands” on the Sacketts’ property are not “waters of the United States” for several independently sufficient reasons. First, for the reasons set out by the Court, the Sacketts’ wetlands are not “waters” because they lack a continuous surface connection with a traditional navigable water. See ante, at 27. Second, the nonnavigable so-called “tributary” (really, a roadside ditch) across the street from the Sacketts’ property is not a water of the United States because it is not, has never been, and cannot reasonably be made a highway of interstate or foreign commerce. See SWANCC, 531 U. S., at 172. Third, the agencies have not attempted to establish that Priest Lake is a navigable water under the expanded Daniel Ball test. The lake is purely intrastate, and the agencies have not shown that it is a highway of interstate or foreign commerce. Instead, the agencies rely primarily upon interstate tourism and the lake’s attenuated connection to navigable waters. See U. S. Army Corps of Engineers, G. Rayner, Priest Lake Jurisdictional Determination (Feb. 27, 2007); see also Brief for National Association of Home Builders of the United States as Amicus Curiae 21–24. But, this is likely insufficient under the traditional navigability tests to which the CWA pegs jurisdiction. See supra, at 10–13; accord, Tr. of Oral Arg. 119 (EPA counsel conceding that Congress “hasn’t used its full Commerce Clause authority” in  the CWA). Finally, even assuming that a navigable water is involved, the agencies have not established that the Sacketts’ actions would obstruct or otherwise impede navigable capacity or the suitability of the water for interstate commerce. See Rio Grande Dam & Irrigation Co., 174 U. S., at 709.

 This is not to say that determining whether a water qualifies under the CWA is always easy. But, it is vital that we ask the right question in determining what constitutes “the waters of the United States”: whether the water is within Congress’ traditional authority over the interstate channels of commerce. Here, no elaborate analysis is required to know that the Sacketts’ land is not a water, much less a water of the United States.

IV

 What happened to the CWA is indicative of deeper problems with the Court’s Commerce Clause jurisprudence. The eclipse of Congress’ well-defined authority over the channels of interstate commerce tracks the Court’s expansion of Congress’ power “[t]o regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes.” Art. I, §8, cl. 3. As I have explained at length, the Court’s Commerce Clause jurisprudence has significantly departed from the original meaning of the Constitution. See Gonzales v. Raich, 545 U. S. 1, 58–59 (2005) (dissenting opinion); Lopez, 514 U. S., at 586–602 (concurring opinion). “The Clause’s text, structure, and history all indicate that, at the time of the founding, the term ‘ “commerce” consisted of selling, buying, and bartering, as well as transporting for these purposes.’ ” Raich, 545 U. S., at 58. This meaning “stood in contrast to productive activities like manufacturing and agriculture,” and founding era sources demonstrate that “the term ‘commerce’ [was] consistently used to mean trade or exchange—not all economically gainful activity that has some attenuated connection  to trade or exchange.” Ibid. (citing Lopez, 514 U. S., at 586–587 (Thomas, J., concurring); Barnett 112–125).10 By departing from this limited meaning, the Court’s cases have licensed federal regulatory schemes that would have been “unthinkable” to the Constitution’s Framers and ratifiers. Raich, 545 U. S., at 59 (opinion of Thomas, J.).

 Perhaps nowhere is this deviation more evident than in federal environmental law, much of which is uniquely dependent upon an expansive interpretation of the Commerce Clause. See Hodel v. Virginia Surface Mining & Reclamation Assn., Inc., 452 U. S. 264, 281–283 (1981); see also Brief for Claremont Institute’s Center for Constitutional Jurisprudence as Amicus Curiae 17–25. And many environmental regulatory schemes seem to push even the limits of the Court’s New Deal era Commerce Clause precedents, see Hodel, 452 U. S., at 309–313 (Rehnquist, J., concurring in judgment), to say nothing of the Court’s more recent precedents reining in the commerce power. See, e.g., SWANCC, 531 U. S., at 173–174; cf. Rancho Viejo, LLC v. Norton, 334 F. 3d 1158, 1160 (CADC 2003) (Roberts, J., dissenting from denial of rehearing en banc) (“The panel’s approach in this case leads to the result that regulating the taking [under the Endangered Species Act] of a hapless toad that, for reasons of its own, lives its entire life in California constitutes regulating ‘Commerce among the several States’ ” (ellipsis omitted)).

  The Court’s opinion today curbs a serious expansion of federal authority that has simultaneously degraded States’ authority and diverted the Federal Government from its important role as guarantor of the Nation’s great commercial water highways into something resembling “a local zoning board.” Rapanos, 547 U. S., at 738 (plurality opinion). But, wetlands are just the beginning of the problems raised by the agencies’ assertion of jurisdiction in this case. Despite our clear guidance in SWANCC that the CWA extends only to the limits of Congress’ traditional jurisdiction over navigable waters, the EPA and the Corps have continued to treat the statute as if it were based on New Deal era conceptions of Congress’ commerce power. But, while not all environmental statutes are so textually limited, Congress chose to tether federal jurisdiction under the CWA to its traditional authority over navigable waters. The EPA and the Corps must respect that decision.

SUPREME COURT OF THE UNITED STATES

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No. 21–454

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MICHAEL SACKETT, et ux., PETITIONERS v. ENVIRONMENTAL PROTECTION AGENCY, et al.

on writ of certiorari to the united states court of appeals for the ninth circuit

 Justice Kagan, with whom Justice Sotomayor and Justice Jackson join, concurring in the judgment.

 Like Justice Kavanaugh, “I would stick to the text.” Post, at 14 (opinion concurring in judgment). As he explains in the principal concurrence, our normal method of construing statutes identifies which wetlands the Clean Water Act covers—and the answer provided exceeds what the Court says today. Because the Act covers “the waters of the United States,” and those waters “includ[e]” all wetlands “adjacent” to other covered waters, the Act extends to those “adjacent” wetlands. 33 U. S. C. §§1362(7), 1344(g)(1). And in ordinary language, one thing is adjacent to another not only when it is touching, but also when it is nearby. See post, at 4–5 (quoting multiple dictionaries). So, for example, one house is adjacent to another even when a stretch of grass and a picket fence separate the two. As applied here, that means—as the EPA and Army Corps have recognized for almost half a century—that a wetland comes within the Act if (i) it is “contiguous to or bordering a covered water, or (ii) if [it] is separated from a covered water only by a man-made dike or barrier, natural river berm, beach dune, or the like.” Post, at 14 (emphasis in original). In excluding all the wetlands in category (ii), the majority’s “ ‘continuous surface connection’ test disregards the ordinary meaning of  ‘adjacent.’ ” Post, at 9. The majority thus alters—more precisely, narrows the scope of—the statute Congress drafted.

 And make no mistake: Congress wrote the statute it meant to. The Clean Water Act was a landmark piece of environmental legislation, designed to address a problem of “crisis proportions.” R. Adler, J. Landman, & D. Cameron, The Clean Water Act: 20 Years Later 5 (1993). How bad was water pollution in 1972, when the Act passed? Just a few years earlier, Ohio’s Cuyahoga River had “burst into flames, fueled by oil and other industrial wastes.” Ibid. And that was merely one of many alarms. Rivers, lakes, and creeks across the country were unfit for swimming. Drinking water was full of hazardous chemicals. Fish were dying in record numbers (over 40 million in 1969); and those caught were often too contaminated to eat (with mercury and DDT far above safe levels). See id., at 5–6. So Congress embarked on what this Court once understood as a “total restructuring and complete rewriting” of existing water pollution law. Milwaukee v. Illinois, 451 U. S. 304, 317 (1981) (internal quotation marks omitted). The new Act established “a self-consciously comprehensive” and “all- encompassing program of water pollution regulation.” Id., at 318–319. Or said a bit differently, the Act created a program broad enough to achieve the codified objective of “restor[ing] and maintain[ing] the chemical, physical, and biological integrity of the Nation’s waters.” §1251(a). If you’ve lately swum in a lake, happily drunk a glass of water straight from the tap, or sat down to a good fish dinner, you can appreciate what the law has accomplished.

 Vital to the Clean Water Act’s project is the protection of wetlands—both those contiguous to covered waters and others nearby. As this Court (again, formerly) recognized, wetlands “serve to filter and purify water draining into adjacent bodies of water, and to slow the flow of surface runoff into lakes, rivers, and streams.” United States v. Riverside Bayview Homes, Inc., 474 U. S. 121, 134 (1985) (citation  omitted). Wetlands thus “function as integral parts of the aquatic environment”—protecting neighboring water if themselves healthy, imperiling neighboring water if instead degraded. Id., at 135. At the same time, wetlands play a crucial part in flood control (if anything, more needed now than when the statute was enacted). And wetlands perform those functions, as Justice Kavanaugh explains, not only when they are touching a covered water but also when they are separated from it by a natural or artificial barrier—say, a berm or dune or dike or levee. See post, at 12–13 (giving examples). Those barriers, as he says, “do not block all water flow,” and in fact are usually evidence of a significant connection between the wetland and the water. Ibid. Small wonder, then, that the Act—as written, rather than as read today—covers wetlands with that kind of connection. Congress chose just the word needed to meet the Act’s objective. A wetland is protected when it is “adjacent” to a covered water—not merely when it is “adjoining” or “contiguous” or “touching,” or (in the majority’s favorite made-up locution) has a “continuous surface connection.” See, e.g., ante, at 27.

 Today’s majority, though, believes Congress went too far. In the majority’s view, the Act imposes unjustifiably “crushing consequences” for violations of its terms. Ante, at 3. And many of those violations, it thinks, are of no real concern, arising from “mundane” land-use conduct “like moving dirt.” Ante, at 13. Congress, the majority scolds, has unleashed the EPA to regulate “swimming pools[ ] and puddles,” wreaking untold havoc on “a staggering array of landowners.” Ante, at 1, 13. Surely something has to be done; and who else to do it but this Court? It must rescue property owners from Congress’s too-ambitious program of pollution control.

 So the majority shelves the usual rules of interpretation—reading the text, determining what the words used there mean, and applying that ordinary understanding  even if it conflicts with judges’ policy preferences. The majority’s first pass through the statute is, as Justice Kavanaugh says, “unorthodox.” Post, at 9. “A minus B, which includes C”? Ante, at 19. The majority could use every letter of the alphabet, and graduate to quadratic equations, and still not solve its essential problem. As the majority concedes, the statute “tells us that at least some wetlands must qualify as ‘waters of the United States.’ ” Ante, at 18–19. More, the statute tells us what those “some wetlands” are: the “adjacent” ones. And again, as Justice Kavanaugh shows, “adjacent” does not mean adjoining. See post, at 4–6; supra, at 1–2. So the majority proceeds to its back-up plan. It relies as well on a judicially manufactured clear-statement rule. When Congress (so says the majority) exercises power “over private property”—particularly, over “land and water use”—it must adopt “exceedingly clear language.” Ante, at 23 (internal quotation marks omitted). There is, in other words, a thumb on the scale for property owners—no matter that the Act (i.e., the one Congress enacted) is all about stopping property owners from polluting. See supra, at 2.

 Even assuming that thumb’s existence, the majority still would be wrong. As Justice Kavanaugh notes, clear-statement rules operate (when they operate) to resolve problems of ambiguity and vagueness. See post, at 11; see also Bond v. United States, 572 U. S. 844, 859 (2014); United States v. Bass, 404 U. S. 336, 347 (1971). And no such problems are evident here. One last time: “Adjacent” means neighboring, whether or not touching; so, for example, a wetland is adjacent to water on the other side of a sand dune. That congressional judgment is as clear as clear can be—which is to say, as clear as language gets. And so a clear-statement rule must leave it alone. The majority concludes otherwise because it is using its thumb not to resolve ambiguity or clarify vagueness, but instead to “correct” breadth. Those paying attention have seen this move  before—actually, just last Term. In another case of environmental regulation (involving clean air), the Court invoked another clear-statement rule (the so-called major questions doctrine) to diminish another plainly expansive term (“system of emission reduction”). See West Virginia v. EPA, 597 U. S. ___, ___, ___ (2022) (slip op., at 2, 19). “[C]ontra the majority,” I said then, “a broad term is not the same thing as a ‘vague’ one.” Id., at ___ (dissenting opinion) (slip op., at 8). And a court must treat the two differently. A court may, on occasion, apply a clear-statement rule to deal with statutory vagueness or ambiguity. But a court may not rewrite Congress’s plain instructions because they go further than preferred. That is what the majority does today in finding that the Clean Water Act excludes many wetlands (clearly) “adjacent” to covered waters.

 And still more fundamentally, why ever have a thumb on the scale against the Clean Water Act’s protections? The majority first invokes federalism. See ante, at 23–24. But as Justice Kavanaugh observes, “the Federal Government has long regulated the waters of the United States, including adjacent wetlands.” Post, at 11. The majority next raises the specter of criminal penalties for “indeterminate” conduct. See ante, at 24–25. But there is no peculiar indeterminacy in saying—as regulators have said for nearly a half century—that a wetland is covered both when it touches a covered water and when it is separated by only a dike, berm, dune, or similar barrier. (That standard is in fact more definite than a host of criminal laws I could name.) Today’s pop-up clear-statement rule is explicable only as a reflexive response to Congress’s enactment of an ambitious scheme of environmental regulation. It is an effort to cabin the anti-pollution actions Congress thought appropriate. See ante, at 23 (complaining about Congress’s protection of “vast” and “staggering” “additional area”). And that, too, recalls last Term, when I remarked on special canons “magically appearing as get-out-of-text-free cards”  to stop the EPA from taking the measures Congress told it to. See West Virginia, 597 U. S., at ___–___ (dissenting opinion) (slip op., at 28–29). There, the majority’s non-textualism barred the EPA from addressing climate change by curbing power plant emissions in the most effective way. Here, that method prevents the EPA from keeping our country’s waters clean by regulating adjacent wetlands. The vice in both instances is the same: the Court’s appointment of itself as the national decision-maker on environmental policy.

 So I’ll conclude, sadly, by repeating what I wrote last year, with the replacement of only a single word. “[T]he Court substitutes its own ideas about policymaking for Congress’s. The Court will not allow the Clean [Water] Act to work as Congress instructed. The Court, rather than Congress, will decide how much regulation is too much.” Id., at ___ (slip op., at 32). Because that is not how I think our Government should work—more, because it is not how the Constitution thinks our Government should work—I respectfully concur in the judgment only.

SUPREME COURT OF THE UNITED STATES

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No. 21–454

_________________

MICHAEL SACKETT, et ux., PETITIONERS v. ENVIRONMENTAL PROTECTION AGENCY, et al.

on writ of certiorari to the united states court of appeals for the ninth circuit

 Justice Kavanaugh, with whom Justice Sotomayor, Justice Kagan, and Justice Jackson join, concurring in the judgment.

 The Clean Water Act generally prohibits dumping dredged or fill material without a permit into the “waters of the United States.” 33 U. S. C. §§1311(a), 1344(a), 1362. The “waters of the United States” include wetlands that are “adjacent” to waters covered by the Act—for example, wetlands that are adjacent to covered rivers or lakes. §§1344(g), 1362(7). The question in this case is whether the wetlands on the Sacketts’ residential property are adjacent to covered waters and therefore covered under the Act.

 The Ninth Circuit held that the wetlands on the Sacketts’ property are covered by the Clean Water Act because, as relevant here, the wetlands have a “significant nexus” to covered waters nearby. 8 F. 4th 1075, 1093 (2021). The Court today reverses the Ninth Circuit’s judgment.

 I agree with the Court’s reversal of the Ninth Circuit. In particular, I agree with the Court’s decision not to adopt the “significant nexus” test for determining whether a wetland is covered under the Act. And I agree with the Court’s bottom-line judgment that the wetlands on the Sacketts’  property are not covered by the Act and are therefore not subject to permitting requirements.

 I write separately because I respectfully disagree with the Court’s new test for assessing when wetlands are covered by the Clean Water Act. The Court concludes that wetlands are covered by the Act only when the wetlands have a “continuous surface connection” to waters of the United States—that is, when the wetlands are “adjoining” covered waters. Ante, at 20, 22 (internal quotation marks omitted). In my view, the Court’s “continuous surface connection” test departs from the statutory text, from 45 years of consistent agency practice, and from this Court’s precedents. The Court’s test narrows the Clean Water Act’s coverage of “adjacent” wetlands to mean only “adjoining” wetlands. But “adjacent” and “adjoining” have distinct meanings: Adjoining wetlands are contiguous to or bordering a covered water, whereas adjacent wetlands include both (i) those wetlands contiguous to or bordering a covered water, and (ii) wetlands separated from a covered water only by a man-made dike or barrier, natural river berm, beach dune, or the like. By narrowing the Act’s coverage of wetlands to only adjoining wetlands, the Court’s new test will leave some long-regulated adjacent wetlands no longer covered by the Clean Water Act, with significant repercussions for water quality and flood control throughout the United States. Therefore, I respectfully concur only in the Court’s judgment.

I

 The Clean Water Act generally prohibits dumping a “pollutant”—including dredged or fill material—into “navigable waters” without a permit. 33 U. S. C. §§1311(a), 1344(a), 1362. The Act defines “navigable waters” as “the waters of the United States, including the territorial seas.” §1362(7).

 As the Court today ultimately agrees, see ante, at 19, and  the Sacketts acknowledge, see Tr. of Oral Arg. 7–8, 33–34, 56–57, the statutory term “waters of the United States” covers wetlands “adjacent” to waters of the United States—for example, wetlands adjacent to a river or lake that is itself a water of the United States. 33 U. S. C. §1344(g).

 As enacted in 1972, the Clean Water Act protected “the waters of the United States.” §§1311(a), 1362(7), 1362(12). In 1975, the Army Corps interpreted “waters of the United States” to include wetlands “adjacent to other navigable waters.” 40 Fed. Reg. 31324. In 1977, Congress expressly adopted that same understanding of the Act, amending the Act to make clear that only the Federal Government, and not the States, may issue Clean Water Act permits for dumping dredged or fill material into certain “waters of the United States,” “including wetlands adjacent” to those covered waters. Clean Water Act, 91 Stat. 1601; 33 U. S. C. §1344(g). In that 1977 Act, Congress thus expressly recognized “adjacent wetlands” as “waters of the United States.”

 Interpreting the text of the Act as amended in 1977, this Court has long held that the Act covers “adjacent” wetlands. See United States v. Riverside Bayview Homes, Inc., 474 U. S. 121, 134–135, 138 (1985) (“Congress expressly stated that the term ‘waters’ included adjacent wetlands.”); see also Rapanos v. United States, 547 U. S. 715, 742 (2006) (plurality opinion) (wetlands that “are ‘adjacent to’ ” waters of the United States are “covered by the Act”); Solid Waste Agency of Northern Cook Cty. v. Army Corps of Engineers, 531 U. S. 159, 167, 172 (2001) (recognizing “Congress’ unequivocal” “approval of, the Corps’ regulations interpreting the [Act] to cover wetlands adjacent to navigable waters”). The Court has also ruled that the Act’s coverage of adjacent wetlands does not extend to “isolated” wetlands. Id., at 168–172.

 So the question here becomes the meaning of “adjacent” wetlands under the Clean Water Act. As a matter of  ordinary meaning and longstanding agency practice, a wetland is “adjacent” to a covered water (i) if the wetland is adjoining—that is, contiguous to or bordering—a covered water—or (ii) if the wetland is separated from a covered water only by a man-made dike or barrier, natural river berm, beach dune, or the like.

 The Court and I agree that wetlands in the first category—that is, wetlands adjoining a covered water—are covered as adjacent wetlands. Ante, at 19–22. But the Court and I disagree about the second category—that is, wetlands separated from a covered water only by a man-made dike or barrier, natural river berm, beach dune, or the like. The Court concludes that wetlands in that second category are not covered as adjacent wetlands because those wetlands do not have a continuous surface connection to a covered water—in other words, those wetlands are not adjoining the covered water. I disagree because the statutory text (“adjacent”) does not require a continuous surface connection between those wetlands and covered waters.

 The ordinary meaning of the term “adjacent” has not changed since Congress amended the Clean Water Act in 1977 to expressly cover “wetlands adjacent” to waters of the United States. 91 Stat. 1601; 33 U. S. C. §1344(g). Then as now, “adjacent” means lying near or close to, neighboring, or not widely separated. Indeed, the definitions of “adjacent” are notably explicit that two things need not touch each other in order to be adjacent. “Adjacent” includes “adjoining” but is not limited to “adjoining.” See, e.g., Black’s Law Dictionary 62 (rev. 4th ed. 1968) (defining “adjacent” as “Lying near or close to; sometimes, contiguous; neighboring; . . . may not actually touch”); Black’s Law Dictionary 50 (11th ed. 2019) (defining “adjacent” as “Lying near or close to, but not necessarily touching”); see also, e.g., Webster’s Third New International Dictionary 26 (1976) (defining “adjacent” as  “to lie near, border on”; “not distant or far off ”; “nearby but not touching”).

 By contrast to the Clean Water Act’s express inclusion of “adjacent” wetlands, other provisions of the Act use the narrower term “adjoining.” Compare 33 U. S. C. §1344(g) with §§1321(b)–(c) (“adjoining shorelines” and “adjoining shorelines to the navigable waters”); §1346(c) (“land adjoining the coastal recreation waters”); see also §1254(n)(4) (“estuary” includes certain bodies of water “having unimpaired natural connection with open sea”); §2802(5) (“ ‘coastal waters’ ” includes wetlands “having unimpaired connection with the open sea up to the head of tidal influence”). The difference in those two terms is critical to this case. Two objects are “adjoining” if they “are so joined or united to each other that no third object intervenes.” 1968 Black’s 62 (comparing “adjacent” with “adjoining”); see ibid. (“Adjoining” means “touching or contiguous, as distinguished from lying near to or adjacent”); see also Black’s Law Dictionary 38–39 (5th ed. 1979) (same); Webster’s Third 26–27 (similar). As applied to wetlands, a marsh is adjacent to a river even if separated by a levee, just as your neighbor’s house is adjacent to your house even if separated by a fence or an alley.

 In other contexts, this Court has recognized the important difference in the meaning of the terms “adjacent” and “adjoining” and has held that “adjacent” is broader than “adjoining or actually contiguous.” United States v. St. Anthony R. Co., 192 U. S. 524, 533 (1904). As an example, the St. Anthony case concerned a federal statute granting railroads the right to cut timber from “public lands adjacent” to a railroad right of way. Id., at 526, n. 1, 530. The Court held that timber could be taken from “adjacent” sections of land that were not “contiguous to or actually touching” the right of way. Id., at 538. The Court explained that if “the word ‘adjoining’ had been used instead of ‘adjacent,’ ” a railroad could not have taken the relevant  timber. Ibid.

 In short, the term “adjacent” is broader than “adjoining” and does not require that two objects actually touch. We must presume that Congress used the term “adjacent” wetlands in 1977 to convey a different meaning than “adjoining” wetlands. See Russello v. United States, 464 U. S. 16, 23 (1983).

II

 Longstanding agency practice reinforces the ordinary meaning of adjacency and demonstrates, contrary to the Court’s conclusion today, that the term “adjacent” is broader than “adjoining.”

 After the Act was passed in 1972, a key question quickly arose: Did “waters of the United States” include wetlands? By 1975, the Army Corps concluded that the term “waters of the United States” included “adjacent” wetlands. 40 Fed. Reg. 31324. In 1977, Congress itself made clear that “adjacent” wetlands were covered by the Act by amending the Act and enacting §1344(g). 91 Stat. 1601.

 Since 1977, when Congress explicitly included “adjacent” wetlands within the Act’s coverage, the Army Corps has adopted a variety of interpretations of its authority over those wetlands—some more expansive and others less expansive. But throughout those 45 years and across all eight Presidential administrations, the Army Corps has always included in the definition of “adjacent wetlands” not only wetlands adjoining covered waters but also those wetlands that are separated from covered waters by a man-made dike or barrier, natural river berm, beach dune, or the like.

In 1977 and 1980, under President Carter, the Army Corps and EPA defined “adjacent” wetlands as including wetlands “separated from other waters of the United States by man-made dikes or barriers, natural river berms, beach dunes and the like.” 42 Fed. Reg.  37144; see 45 Fed. Reg. 85345.

In 1986, under President Reagan, the Army Corps adopted a new regulatory provision defining “waters of the United States” and reaffirmed that “adjacent” wetlands include wetlands “separated from other waters of the United States by man-made dikes or barriers, natural river berms, beach dunes and the like.” 51 Fed. Reg. 41210, 41251.

From 1986 until 2015, under Presidents Reagan, George H. W. Bush, Clinton, George W. Bush, and Obama, the regulations continued to cover wetlands “separated from other waters of the United States by man-made dikes or barriers, natural river berms, beach dunes and the like.” See 33 CFR §328.3(c) (1991); 40 CFR §230.3(b) (1991); 33 CFR §328.3(c) (1998); 40 CFR §230.3(b) (1998); 33 CFR §328.3(c) (2005); 40 CFR §230.3(b) (2005); 33 CFR §328.3(c) (2010); 40 CFR §230.3(b) (2010).

In 2015, under President Obama, the Army Corps and EPA promulgated a new rule, which again specified that “adjacent” wetlands include wetlands “separated by constructed dikes or barriers, natural river berms, beach dunes, and the like.” 80 Fed. Reg. 37105, 37116.

In 2019 and 2020, under President Trump, the Army Corps and EPA repealed the 2015 rule and issued a new rule. But even following the repeal and new rule, adjacent wetlands included wetlands that are “physically separated” from certain covered waters “only by a natural berm, bank, dune, or similar natural feature” or “only by an artificial dike, barrier, or similar artificial structure so long as that structure allows for a direct hydrologic surface connection . . . in a typical year, such as through a culvert, flood or tide gate, pump, or similar artificial feature.” 85 Fed. Reg. 22338, 22340 (2020).

 In 2023, under President Biden, the Army Corps and EPA once again issued a new rule that defined “adjacent” wetlands to include wetlands “separated from other waters of the United States by man-made dikes or barriers, natural river berms, beach dunes, and the like.” 88 Fed. Reg. 3143–3144.

 That longstanding and consistent agency interpretation reflects and reinforces the ordinary meaning of the statute. The eight administrations since 1977 have maintained dramatically different views of how to regulate the environment, including under the Clean Water Act. Some of those administrations promulgated very broad interpretations of adjacent wetlands. Others adopted far narrower interpretations. Yet all of those eight different administrations have recognized as a matter of law that the Clean Water Act’s coverage of adjacent wetlands means more than adjoining wetlands and also includes wetlands separated from covered waters by man-made dikes or barriers, natural river berms, beach dunes, or the like. That consistency in interpretation is strong confirmation of the ordinary meaning of adjacent wetlands.

III

 The Act covers “adjacent” wetlands. And adjacent wetlands is a broader category than adjoining wetlands. But instead of adhering to the ordinary meaning of “adjacent” wetlands, to the 45 years of consistent agency practice, and to this Court’s precedents, the Court today adopts a test under which a wetland is covered only if the wetland has a “continuous surface connection” to a covered water—in other words, if it adjoins a covered water. Ante, at 22 (internal quotation marks omitted). The Court says that the wetland and the covered water must be “indistinguishable” from one another—in other words, there must be no “clear demarcation” between wetlands and covered waters. Ante, at 21 (internal quotation marks  omitted).

 The Court’s “continuous surface connection” test disregards the ordinary meaning of “adjacent.” The Court’s mistake is straightforward: The Court essentially reads “adjacent” to mean “adjoining.” As a result, the Court excludes wetlands that the text of the Clean Water Act covers—and that the Act since 1977 has always been interpreted to cover.

 In support of its narrower “continuous surface connection” interpretation of covered wetlands, the Court emphasizes that the 1972 Act’s overarching statutory term is “waters of the United States.” Ante, at 19. And the Court suggests that the term “waters of the United States” cannot be interpreted to cover “adjacent wetlands” but only “adjoining wetlands.” See ante, at 19–22. But in 1977, Congress itself expressly made clear that the “waters of the United States” include “adjacent” wetlands. 91 Stat. 1601. And Congress would not have used the word “adjacent” in 1977 if Congress actually meant “adjoining,” particularly because Congress used the word “adjoining” in several other places in the Clean Water Act. 33 U. S. C. §§1321(b)–(c), 1346(c); see also §§1254(n)(4), 2802(5).

 To bolster its unorthodox statutory interpretation, the Court resorts to a formula: “A minus B, which includes C.” Ante, at 19. That just seems to be a fancier way of arguing (against all indications of ordinary meaning) that “adjacent” means “adjoining.” But again the Court is imposing a restriction nowhere to be found in the text. In the end, the Court has no good answer for why Congress used the term “adjacent” instead of “adjoining” when Congress enacted §1344(g) in 1977.1

  Recall again how the 1977 Act came about. In 1975, the Army Corps concluded that the 1972 Act’s coverage of “waters of the United States” included “adjacent” wetlands. 40 Fed. Reg. 31324. Then in 1977, Congress adopted a new permitting program for a category of “waters of the United States.” Congress allocated to the Federal Government exclusive authority to issue Clean Water Act permits for dumping dredged or fill material into certain “waters of the United States,” “including wetlands adjacent thereto.” 91 Stat. 1601. Through that statutory text, Congress made clear its understanding that “waters of the United States” included “adjacent” wetlands—and indeed, Congress designed important federal-state permitting authorities around that precise understanding. Congress’s 1977 amendment did not “merely” express “an opinion” about the meaning of the Clean Water Act; rather, it reflected what Congress understood “its own prior acts to mean.” Bell v. New Jersey, 461 U. S. 773, 785, n. 12 (1983) (internal quotation marks omitted).

  Moreover, Congress’s 1977 decision was no accident. As this Court has previously recognized, “the scope of the Corps’ asserted jurisdiction over wetlands”—including the Corps’ decision to cover adjacent wetlands—“was specifically brought to Congress’ attention” in 1977, “and Congress rejected measures designed to curb the Corps’ jurisdiction.” United States v. Riverside Bayview Homes, Inc., 474 U. S. 121, 137 (1985). Subsequently, this Court has recognized that Congress’s 1977 amendment made clear that the Act “cover[s] wetlands adjacent to navigable waters.” Solid Waste Agency of Northern Cook Cty. v. Army Corps of Engineers, 531 U. S. 159, 167 (2001); see Riverside Bayview, 474 U. S., at 138 (“Congress expressly stated that the term ‘waters’ included adjacent wetlands”).

 Not surprisingly, in the years since 1977, no one has  seriously disputed that the Act covers adjacent wetlands. And in light of the text of the Act, eight consecutive Presidential administrations have recognized that the Act covers adjacent wetlands and that adjacent wetlands include more than simply adjoining wetlands. The Court’s analysis today therefore seems stuck in a bit of a time warp—relitigating an issue that Congress settled in 1977 and that this Court has long treated as settled: The Act covers adjacent wetlands. By adopting a test that substitutes “adjoining” for “adjacent,” the Court today errs.

 The Court also invokes federalism and vagueness concerns. The Court suggests that ambiguities or vagueness in federal statutes regulating private property should be construed in favor of the property owner, particularly given that States have traditionally regulated private property rights. See ante, at 23–25; see also Solid Waste Agency of Northern Cook Cty., 531 U. S., at 173–174. To begin with, the Federal Government has long regulated the waters of the United States, including adjacent wetlands.

 In any event, the decisive point here is that the term “adjacent” in this statute is unambiguously broader than the term “adjoining.” On that critical interpretive question, there is no ambiguity. We should not create ambiguity where none exists. And we may not rewrite “adjacent” to mean the same thing as “adjoining,” as the Court does today.

 Finally, contrary to the Court’s suggestion otherwise, the analysis in this separate opinion centers on the “operative” text, “waters of the United States.” Ante, at 27. To recap: The 1972 Act covered “waters of the United States.” In 1977, when Congress allocated permitting authority, Congress expressly included “adjacent” wetlands within the “waters of the United States.” Since then, the Executive Branch and this Court have recognized that “waters of the United States” covers “adjacent” wetlands. Based on the  text of the statute, as well as 45 years of consistent agency practice and this Court’s precedents, I respectfully disagree with the Court’s decision to interpret “waters of the United States” to include only adjoining wetlands and not adjacent wetlands.

IV

 The difference between “adjacent” and “adjoining” in this context is not merely semantic or academic. The Court’s rewriting of “adjacent” to mean “adjoining” will matter a great deal in the real world. In particular, the Court’s new and overly narrow test may leave long-regulated and long-accepted-to-be-regulable wetlands suddenly beyond the scope of the agencies’ regulatory authority, with negative consequences for waters of the United States. For example, the Mississippi River features an extensive levee system to prevent flooding. Under the Court’s “continuous surface connection” test, the presence of those levees (the equivalent of a dike) would seemingly preclude Clean Water Act coverage of adjacent wetlands on the other side of the levees, even though the adjacent wetlands are often an important part of the flood-control project. See Brief for Respondents 30. Likewise, federal protection of the Chesapeake Bay might be less effective if fill can be dumped into wetlands that are adjacent to (but not adjoining) the bay and its covered tributaries. See id., at 35. Those are just two of many examples of how the Court’s overly narrow view of the Clean Water Act will have concrete impact.

 As those examples reveal, there is a good reason why Congress covered not only adjoining wetlands but also adjacent wetlands. Because of the movement of water between adjacent wetlands and other waters, pollutants in wetlands often end up in adjacent rivers, lakes, and other waters. Natural barriers such as berms and dunes do not block all water flow and are in fact evidence of a regular connection between a water and a wetland. 85 Fed. Reg.  22307; 88 Fed. Reg. 3095, 3118. Similarly, artificial barriers such as dikes and levees typically do not block all water flow, 85 Fed. Reg. 22312; 88 Fed. Reg. 3076, and those artificial structures were often built to control the surface water connection between the wetland and the water. 85 Fed. Reg. 22315; 88 Fed. Reg. 3118. The scientific evidence overwhelmingly demonstrates that wetlands separated from covered waters by those kinds of berms or barriers, for example, still play an important role in protecting neighboring and downstream waters, including by filtering pollutants, storing water, and providing flood control. See 88 Fed. Reg. 3118; 33 CFR §320.4(b)(2) (2022); see also United States v. Riverside Bayview Homes, Inc., 474 U. S. 121, 134 (1985). In short, those adjacent wetlands may affect downstream water quality and flood control in many of the same ways that adjoining wetlands can.

 The Court’s erroneous test not only will create real-world consequences for the waters of the United States, but also is sufficiently novel and vague (at least as a single standalone test) that it may create regulatory uncertainty for the Federal Government, the States, and regulated parties. As the Federal Government suggests, the continuous surface connection test raises “a host of thorny questions” and will lead to “potentially arbitrary results.” Brief for Respondents 29. For example, how difficult does it have to be to discern the boundary between a water and a wetland for the wetland to be covered by the Clean Water Act? How does that test apply to the many kinds of wetlands that typically do not have a surface water connection to a covered water year-round—for example, wetlands and waters that are connected for much of the year but not in the summer when they dry up to some extent? How “temporary” do “interruptions in surface connection” have to be for wetlands to still be covered? Ante, at 21. How does the test operate in areas where  storms, floods, and erosion frequently shift or breach natural river berms? Can a continuous surface connection be established by a ditch, swale, pipe, or culvert? See 88 Fed. Reg. 3095. The Court covers wetlands separated from a water by an artificial barrier constructed illegally, see ante, at 21–22, n. 16, but why not also include barriers authorized by the Army Corps at a time when it would not have known that the barrier would cut off federal authority? The list goes on.

 Put simply, the Court’s atextual test—rewriting “adjacent” to mean “adjoining”—will produce real-world consequences for the waters of the United States and will generate regulatory uncertainty. I would stick to the text. There can be no debate, in my respectful view, that the key statutory term is “adjacent” and that adjacent wetlands is a broader category than adjoining wetlands. To be faithful to the statutory text, we cannot interpret “adjacent” wetlands to be the same thing as “adjoining” wetlands.

*  *  *

 In sum, I agree with the Court’s decision not to adopt the “significant nexus” test for adjacent wetlands. I respectfully disagree, however, with the Court’s new “continuous surface connection” test. In my view, the Court’s new test is overly narrow and inconsistent with the Act’s coverage of adjacent wetlands. The Act covers adjacent wetlands, and a wetland is “adjacent” to a covered water (i) if the wetland is contiguous to or bordering a covered water, or (ii) if the wetland is separated from a covered water only by a man-made dike or barrier, natural river berm, beach dune, or the like. The wetlands on the Sacketts’ property do not fall into either of those categories and therefore are not covered under the Act as I would interpret it. Therefore, like the Court, I would reverse the judgment of the U. S. Court of Appeals for the Ninth Circuit and remand for further proceedings. But I respectfully  concur only in the Court’s judgment.