S. 3443 · 112th Congress Robert C. Byrd Mine and Workplace Safety and Health Act of 2012 StageIn committee SponsorJay Rockefeller Introduced2012-07-25 Latest action2012-07-25 · Introduced in Senate Follow Summary Text Subjects Cosponsors (3) Votes (0) Actions Cosponsors (3) Tom Harkin Former member Senate IA Democrat Joe Manchin Former member Senate WV Independent Patty Murray Current member Senate WA Democrat