A coalition of farming, mining and oil companies has urged federal environmental agencies to heed the U.S. Supreme Court's narrow interpretation of the Clean Water Act as they amend their rules to comply with the justices' May decision limiting the government's regulatory authority over wetlands.

In Sackett v. Environmental Protection Agency, the high court said the statute's definition of regulated "waters of the United States" was limited to wetlands that directly adjoin rivers, lakes and other navigable bodies of water. The court rejected the EPA's and U.S. Army Corps of Engineers' broader reading of the act to include navigable waters with a "significant nexus" to wetlands.