Air Quality | Department of Environmental Quality Notice Number 174 | Rulemaking | Public Comment Period Ends July 25, 2025
The Department of Environmental Quality proposes to amend ARM 17.8.1214 and ARM 17.8.1224 pertaining to the Removal of Affirmative Defense Provisions in Title V permits and Administrative Rules.
Background:
On July 12, 2023, the US Environmental Protection Agency (EPA) removed emergency Affirmative Defense provisions from the Clean Air Act (CAA) operating permit program (Title V). In response, Montana’s Department of Environmental Quality (DEQ) proposes to amend Administrative Rules of Montana (ARM) 17.8.1214 and 17.8.1224 pertaining to the removal of Affirmative Defense provisions in Title V permits and Administrative Rules.”
Associated Materials:
Comment Period Ends: July 25, 2025 5:00pm
Send/Submit Comments To:
DEQ Air Quality Bureau - Rules
2401 Colonial Dr
PO Box 200901
Helena, MT 59620
Or electronically to:
Accommodation statement
The department will make reasonable accommodations for persons with disabilities who wish to participate in this public participation process or need an alternative accessible format of this notice. If you require an accommodation, contact the department no later than 5:00 P.M. on July 18, 2025, to advise us of the nature of the accommodation that you need. Please contact the Department of Environmental Quality at P.O. Box 200901, Helena, Montana 59620-0901; phone (406) 444-1388; fax (406) 444-4386; or e-mail DEQrulemaking174@mt.gov.
Tags: Public Comment, Air and Rule Making