Senate Bill

SB 103

Vehicle emissions.

In plain English

Requires the Indiana Department of Environmental Management to do a full evaluation of outdoor air quality in areas of Indiana that do not meet federal air standards. Also requires the agency to identify ways to reduce air pollution or provide regulatory relief that could meet certain goals tied to the federal Clean Air Act.

Written by AI from the official digest below, and checked only by automated rules. If they differ, the official digest and bill text control.

Official digest

Requires IDEM to: (1) perform a comprehensive evaluation of ambient air quality within nonattainment areas in Indiana; and (2) identify air pollution reduction or regulatory relief strategies that could accomplish certain goals with respect to the federal Clean Air Act.

Latest action: Public Law 187, May 6, 2025Full text and history at iga.in.gov

Authors and sponsors

Rick Niemeyer, Dan Dernulc, Hal Slager

Co-authors and co-sponsors: Eric Bassler, Lonnie Randolph, Rodney Pol, Julie Olthoff, Mike Aylesworth, Mike Andrade

Roll-call votes

3 recorded votes, oldest first. Third-reading votes decide whether a bill passes a chamber; amendment votes and procedural motions are listed too.

Senate · Feb 17, 2025

Third reading: vote to pass

Roll call text: SB 103 - Niemeyer - 3rd Reading

Passed

47 yes0 no3 did not vote

Republicans: 37 yes, 0 no, 2 did not voteDemocrats: 9 yes, 0 no, 1 did not voteNot matched to a current member: 1 yes, 0 no

How each member voted

House · Apr 8, 2025

Third reading: vote to pass

Roll call text: SB 103 - Slager - 3rd Reading

Passed

91 yes1 no8 did not vote

Republicans: 63 yes, 0 no, 7 did not voteDemocrats: 26 yes, 1 no, 1 did not voteIndependents: 1 yes, 0 noNot matched to a current member: 1 yes, 0 no

How each member voted

Yes (91)

No (1)

Did not vote (8)

Senate · Apr 22, 2025

Final vote: concurrence or conference report

Roll call text: SB 103 - Niemeyer

Passed

49 yes0 no1 did not vote

Republicans: 38 yes, 0 no, 1 did not voteDemocrats: 10 yes, 0 noNot matched to a current member: 1 yes, 0 no

How each member voted

Source: Open States, compiled from the Indiana General Assembly's official roll calls. The official record at iga.in.gov controls. Spot an error? Let us know.