S. 1148 · 111th Congress Renewable Fuel Standard Improvement Act StageIn committee SponsorChuck Grassley Introduced2009-05-21 Latest action2009-05-21 · Introduced in Senate Follow Summary Text Subjects Cosponsors (6) Votes (0) Actions Cosponsors (6) Pat Roberts Former member Senate KS Republican Sam Brownback Former member Senate KS Republican Mike Johanns Former member Senate NE Republican Kit Bond Former member Senate MO Republican Claire McCaskill Former member Senate MO Democrat John Thune Current member Senate SD Republican