To adopt treaty doc. 100-10, montreal protocol on substances that deplete the ozone layer, a treaty to reduce the production and use of substances which harm TH

On Mar 14, 1988, the Senate voted 83–0 (TREATYDOC 100). Result: passed. By party: Democrats 44–0, Republicans 41–0. It was a bipartisan vote: majorities of both parties voted yes.

During the 100th Congress (1987–1988), Ronald Reagan was president, and Democrats held majorities in both the House and Senate.

Yes: 83
No: 0
Did not vote: 16
Date: Mar 14, 1988

By party

Republicans41 yes · 0 no · 5 didn’t vote
Democrats44 yes · 0 no · 11 didn’t vote

Who broke with their party

Every member who voted sided with their party's majority.

How each senator voted: Yes

Did not vote

Other votes

From Voteview roll call records.

Cite or embed this page

Capitol Receipts, “To adopt treaty doc. 100-10, montreal…: Senate Vote, Mar 14, 1988,” https://www.capitolreceipts.com/vote/100-S-467/to-adopt-treaty-doc-100-10-montreal-protocol-on (accessed 2026-10-17).