Vehicle emissions., the official text

First Regular Session of the 124th General Assembly (2025)

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  SENATE ENROLLED ACT No. 103

   AN ACT to amend the Indiana Code concerning environmental law.

   Be it enacted by the General Assembly of the State of Indiana:

   SECTION 1. IC 13-17-5-10 IS ADDED TO THE INDIANA CODE
AS A NEW SECTION TO READ AS FOLLOWS [EFFECTIVE JULY
1, 2025]: Sec. 10. Not later than December 31, 2025, the department
shall do the following:

      (1) Perform a comprehensive evaluation of ambient air
      quality within any nonattainment areas in Indiana.
      (2) Identify air pollution reduction or regulatory relief
      strategies that can do the following with respect to the federal
      Clean Air Act (42 U.S.C. 7401 et seq.), as amended by the
      federal Clean Air Act Amendments of 1990 (P.L.101-549):

         (A) Ensure that affected areas within Indiana are no
         longer designated as nonattainment.
         (B) Result in the eventual phase out of the inspection and
         maintenance program for light duty vehicles.
         (C) Meet emissions goals.
         (D) Appropriately address air pollution contributions to
         nonattainment areas in Indiana from sources that cannot
         be addressed by state or local controls, including
         contributions from international, natural or background,
         interstate, mobile, and stationary sources as well as
         exceptional events that are unlikely to recur.
         (E) Result in the withdrawal of Lake County and Porter

SEA 103 — Concur
                                    2

         County from the Metropolitan Chicago Interstate Air
         Quality Control Region.
In identifying strategies under subdivision (2), the department
must coordinate with the United States Environmental Protection
Agency.

SEA 103 — Concur
President of the Senate

President Pro Tempore

Speaker of the House of Representatives

Governor of the State of Indiana

Date:                             Time:

SEA 103 — Concur