Maine Air Permits Get Online-Ready Cleanup, With EPA's Approval
Published Date: 7/23/2026
Rule
Summary
The EPA is giving a thumbs-up to Maine’s updated air pollution permit rules, which tidy up language, confirm old practices, and get ready for a new online application system. These changes mainly affect businesses needing air permits and make public comments easier by overlapping with EPA reviews. The new rules kick in on August 24, 2026, with no extra costs, just smoother air permit processes.
Analyzed Economic Effects
11 provisions identified: 9 benefits, 1 costs, 1 mixed.
Federal approval becomes effective August 24, 2026
The EPA formally approved Maine's Title V operating permit program revisions submitted July 29, 2024, and the approval is effective on August 24, 2026. This codifies the listed changes into the federally recognized program in 40 CFR part 70, Appendix A.
Electronic signatures and applications allowed
Maine's revisions allow permit applications to be signed electronically if the signature meets Cross-Media Electronic Reporting requirements (40 CFR part 3) to support a future online application system. This change takes effect on August 24, 2026.
Online public notices replace print newspaper
Maine may publish public notices of intent to file and draft permit availability on the Maine DEP website instead of in a print newspaper, effective August 24, 2026. This changes how the public and applicants are notified about draft permits.
State may keep public records electronically
Maine DEP may keep records for public inspection electronically rather than requiring a paper copy at the Augusta office, under the approved revisions effective August 24, 2026. This updates where and how records are maintained and accessed.
No redlined prior applications required
Maine removed the requirement for applicants to submit redlined versions of previous applications when applying for a permit renewal, and EPA approved that change effective August 24, 2026. Applicants no longer must prepare and submit redline documents for renewals.
State supplies draft licenses to affected states
The revisions clarify that Maine DEP, not the permit applicant, will provide draft licenses to affected states when appropriate; this clarification is approved effective August 24, 2026.
EPA review may run with public comment period
The revisions allow the public comment period on a draft license to run at the same time as EPA's review of the proposed permit, provided the State does not receive comments that cause substantive changes to the draft license. This concurrency is approved effective August 24, 2026.
Portable engines deemed insignificant in some cases
Maine clarified that portable engines not used to power process equipment are considered insignificant activities under the permit program; this clarification is approved effective August 24, 2026. That classification affects whether such engines trigger permitting requirements.
Transfer applications must be completed within 60 days
The approved revisions require transfer applications to be completed within 60 days, consistent with the underlying federal regulation; this requirement is part of the approval effective August 24, 2026.
Affirmative defense removal not approved yet
EPA is not taking action at this time on Maine's proposed removal of the emergency affirmative defense provisions in Section 2(AA); EPA intends to address that requested change in a later action. The rest of the revisions were approved effective August 24, 2026.
EPA says approval imposes no new costs
EPA stated that this approval merely adopts state law as meeting federal requirements, does not impose requirements beyond state law, does not impose an information collection burden under the Paperwork Reduction Act, and is certified as not having a significant economic impact on a substantial number of small entities.
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