S. 506 · 117th Congress Clean School Bus Act of 2021 StageIn committee SponsorCatherine Cortez Masto Introduced2021-03-01 Latest action2021-03-01 · Introduced in Senate Follow Summary Text Subjects Cosponsors (11) Votes (0) Actions Cosponsors (11) Michael Bennet Current member Senate CO Democrat Richard Blumenthal Current member Senate CT Democrat Cory Booker Current member Senate NJ Democrat Amy Klobuchar Current member Senate MN Democrat Ed Markey Current member Senate MA Democrat Bob Menendez Former member Senate NJ Democrat Jeff Merkley Current member Senate OR Democrat Jacky Rosen Current member Senate NV Democrat Tina Smith Current member Senate MN Democrat Ron Wyden Current member Senate OR Democrat Patty Murray Current member Senate WA Democrat