A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period".

Where it stands

1. Introduced Done · Oct 1, 2025
2. Committee Done · Oct 1, 2025
3. Passed Senate Not yet
4. Passed House Not yet
5. President Not yet
6. Law Not yet

From the official actions on Congress.gov.

Key points

What it changes

A plain-language summary isn't ready yet. The official summary below describes the bill.

Who it affects

A plain-language summary isn't ready yet. The official summary below describes the bill.

What it costs

No cost estimate yet.

Where it stands

Motion to proceed to consideration of measure rejected in Senate by Yea-Nay Vote. 43 - 50. Record Vote Number: 4. (Jan 7, 2026)

What happens next

A committee would usually act on it before the full Senate votes.

Official summary

This joint resolution nullifies the Environmental Protection Agency (EPA) final rule titled Air Plan Approval; South Dakota; Regional Haze Plan for the Second Implementation Period (90 Fed. Reg. 41893) and published on August 28, 2025. The final rule approved South Dakota’s revision to its state implementation plan to satisfy the requirements of the EPA’s regional haze rule. (The regional haze rule requires states to take actions to improve visibility in national parks and wilderness areas.)

Summary by the Congressional Research Service (Introduced in Senate version), via Congress.gov. These are proposed provisions, not enacted law.

Recorded votes

1. SENATEProceduralJan 7, 2026 · roll call 4

   On the Motion to Proceed: Motion to Proceed Rejected (43–50)

   This vote set how the bill is debated. It is not a vote for or against the bill.
   Votes by party

   How each party voted on roll call 4

   Party	Yes	No	Present	Did not vote	Share voting Yes
   Democratic	41	0	0	4
   Republican	0	50	0	3
   Independent	2	0	0	0

   Party totals from the official roll call.

   Map: how each state voted

   All voted YesSplitAll voted NoNo Yes or No votes

   Each state is shaded by the share of its senators who voted Yes, out of those who voted Yes or No. Colors show the vote, not party.

   U.S. Senate roll call vote (data via Voteview, UCLA) ↗ — includes how every member voted

Vote types come from the official question text. How we label votes

Legislative history

1. Jan 7, 2026Motion to proceed to consideration of measure rejected in Senate by Yea-Nay Vote. 43 - 50. Record Vote Number: 4.
2. Jan 7, 2026Motion to proceed to consideration of measure made in Senate. (CR S72)
3. Dec 9, 2025Placed on Senate Legislative Calendar under General Orders. Calendar No. 290.
4. Dec 9, 2025Senate Committee on Environment and Public Works discharged, by petition, pursuant to 5 U.S.C. 802(c).
5. Dec 9, 2025Senate Committee on Environment and Public Works discharged, by petition, pursuant to 5 U.S.C. 802(c).
6. Oct 1, 2025Read twice and referred to the Committee on Environment and Public Works.
7. Oct 1, 2025Introduced in Senate