Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Open Public Comment Periods

DEQ accepts public comment in a variety of ways, depending on the program and specific laws and rules. We accept written comments mailed to the DEQ offices, by email directed to a specific program, as well as orally or submitted in writing at a public hearing. Please be advised that DEQ will not respond to comments that are threatening, defamatory, libelous, slanderous, or discriminatory in nature.

This page includes all open public comment opportunities associated with DEQ actions or decisions. For convenience, all programs across the agency post their comment opportunities below. If you are interested in a particular notice, click the link below to find more information as well as details about how you can provide input.

Unless otherwise indicated in the notice below, all comments must be received or postmarked by 11:59 p.m. on the date the comment period closes.

Archived Rule Notices