A federal judge on Wednesday temporarily blocked a federal rule in 24 states that is intended to protect thousands of small streams, wetlands and other waterways throughout the nation.

U.S. District Judge Daniel L. Hovland in Bismarck, North Dakota, halted the regulations from the U.S. Environmental Protection Agency and U.S. Army Corps of Engineers pending the outcome of a lawsuit filed by the 24 states, most of which are led by Republicans. The regulations were finalized in December 2022, repealing a rule implemented during President Donald Trump’s administration but thrown out by federal courts.