To pass S. 2947, the federal water pollution-control act amendments and clean rivers restoration act of 1966.

On Jul 13, 1966, the Senate voted 90–0 (S 2947). Result: passed. By party: Democrats 66–0, Republicans 33–0. It was a bipartisan vote: majorities of both parties voted yes.

During the 89th Congress (1965–1966), Lyndon B. Johnson was president, and Democrats held majorities in both the House and Senate.

Yes: 90
No: 0
Did not vote: 4
Date: Jul 13, 1966

By party

Democrats66 yes · 0 no · 4 didn’t vote
Republicans33 yes · 0 no

Who broke with their party

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

The bill

S. 2947: A bill to amend the Federal Water Pollution Control Act in order to improve and make more effective certain programs pursuant to such act.

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. 2947, the federal water…: Senate Vote, Jul 13, 1966,” https://www.capitolreceipts.com/vote/89-S-352/to-pass-s-2947-the-federal-water-pollution-control (accessed 2026-10-17).