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Title 326 - Air Pollution Control Division

Environmental Rules Board (Air Pollution Control Division)
Rule Name, LSA #, and Subject Matter Submit Comments and Questions to * Rule Notices, Actions and Comment Periods Public Hearings, and Anticipated Adoption and Effective Dates **
NAAQS Attainment Status References Update
#26-31
 
This rulemaking adds a new rule at 326 IAC 1-4.1 that incorporates by reference 40 CFR 81.315, concerning the federal NAAQS attainment status tables for Indiana. It also amends rules at 326 IAC 1-2, 326 IAC 1-3, 326 IAC 6-2, and 326 IAC 6-5, concerning citation corrections and updating outdated rule language in the permitting rules of the Indiana Administrative Code (IAC).
Keelyn Walsh
Rules Development Branch
Office of Legal Counsel

Indiana Department of Environmental Management
100 North Senate Avenue
Indianapolis, IN 46204

Phone: (317) 232-8229
Fax: (317) 233-5970
E-mail: kwalsh@idem.in.gov
Notice of First Public Comment Period
DIN: 20260218-IR-326260031FNA
Comment Period:
02/19/2026 – 03/20/2026

Regulatory Analysis
DIN: 20260218-IR-326260031RAA
Public Hearing: Preliminary Adoption
DIN: 20260218-IR-326260031PHA
05/07/2026

Public Hearing: Final Adoption
DIN: 20260520-IR-326260031PHA
Open Burning for Fire Training Purposes
#26-113

This rulemaking amends rules at 326 IAC 4-1-3 to incorporate statutory changes concerning exemptions to obtain a prior authorization or permit to conduct open burning for the purposes of fire training. Local fire departments and the Indiana Department of Homeland Security mobile burn demonstration unit will not be required to obtain a permit or authorization to conduct open burning for their fire training activities if they meet certain conditions of the exemption.
Dan Watts
Rules Development Branch
Office of Legal Counsel

Indiana Department of Environmental Management
100 North Senate Avenue
Indianapolis, IN 46204

Phone: (317) 234-5345
Fax: (317) 233-5970
E-mail: dwatts1@idem.in.gov


Notice of First Public Comment Period DIN: 20260506-IR-326260113FNA Comment Period: 05/06/2026 – 06/05/2026

Regulatory Analysis DIN: 20260506-IR-326260113RAA
Public Hearing: Preliminary Adoption 07/09/2026

DIN: 20260506-IR-326260113PHA
Low Reid Vapor Pressure Requirements Interim Rule
#26-150

This interim rule aligns with an Executive Order by Governor Braun and a federal waiver by U.S. EPA to suspend rules at 326 IAC 13-3 concerning unnecessary Low Reid Vapor Pressure (LRVP) requirements for Clark and Floyd counties in Indiana.
Keelyn Walsh
Rules Development Branch
Office of Legal Counsel

Indiana Department of Environmental Management
100 North Senate Avenue Indianapolis, IN 46204

Phone: (317) 232-8229 Fax: (317) 233-5970
E-mail: kwalsh@idem.in.gov
Notice of Public Comment for Interim Rule
DIN: 20260513-IR-326260150INA
05/13/2026 – 06/12/2026

Regulatory Analysis
DIN: 20260513-IR-326260150RAA

Governor’s Approval
DIN: 20260513-IR-326260150GAA
 

* Copies of rules, comments, and the agency's written response to those comments are open for public inspection at the Office of Legal Counsel, Indiana Department of Environmental Management, Indiana Government Center North, 100 North Senate Avenue, 13th Floor East, Indianapolis, Indiana.

** After a rule is final adopted, IDEM must provide the complete administrative record to the Attorney General’s office in the form of a "promulgation packet." The Attorney General’s office then has forty-five (45) days to review the rule for form and legality before submitting it to the Governor for signature. The Governor has fifteen (15) days to sign or reject the rule and may request an additional fifteen (15) days if necessary. After signature, the rule is submitted to the Legislative Services Agency for publication in the Indiana Register. Unless specifically stated in the rule, the rule becomes effective thirty (30) days after filing with Legislative Services.