S. 3228 · 110th Congress A bill to amend the Internal Revenue Code of 1986 to allow a credit for green roofs. StageIn committee SponsorGordon Smith Introduced2008-07-08 Latest action2008-07-08 · Introduced in Senate Follow Summary Text Subjects Cosponsors (1) Votes (0) Actions Cosponsors (1) Maria Cantwell Current member Senate WA Democrat