S. 5363: A bill to amend sections 111, 169, and 171 of the Clean Air Act to clarify when a physical change in, or change in the method of operation of, a stationary source constitutes a modification or construction, and for other purposes.

S. 5363 is a federal bill in the 119th Congress. See its sponsors, how members voted, and a plain-English breakdown on PolityLens.