S. 3493 · 115th Congress Addiction Treatment Quality Improvement Act of 2018 StageIn committee SponsorMark Warner Introduced2018-09-25 Latest action2018-09-25 · Introduced in Senate Follow Summary Text Subjects Cosponsors (2) Votes (0) Actions Cosponsors (2) Chuck Grassley Current member Senate IA Republican Bill Nelson Former member Senate FL Democrat