To pass S. 2772, the proposed clean air act amendments of 1973, extending the 1975 interim auto emission standards for 1 year.

On Dec 17, 1973, the Senate voted 85–0 (S 2772). Result: passed. By party: Democrats 47–0, Republicans 39–0, Others 1–0, Independents 1–0. It was a bipartisan vote: majorities of both parties voted yes.

During the 93rd Congress (1973–1974), Richard Nixon was president, and Democrats held majorities in both the House and Senate.

Yes: 85
No: 0
Did not vote: 14
Date: Dec 17, 1973

By party

Democrats47 yes · 0 no · 10 didn’t vote
Republicans39 yes · 0 no · 4 didn’t vote
Others1 yes · 0 no
Independents1 yes · 0 no

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 pass S. 2772, the proposed clean air act…: Senate Vote, Dec 17…,” https://www.capitolreceipts.com/vote/93-S-565/to-pass-s-2772-the-proposed-clean-air-act (accessed 2026-10-17).