Ohio Air Permit Rules Get Federal Seal of Approval
Published Date: 4/2/2026
Rule
Summary
The EPA is giving a thumbs-up to Ohio’s updated air permit rules, making sure state and federal rules match up perfectly. This means businesses and the environment in Ohio will follow clearer, consistent air quality rules starting May 4, 2026. No extra costs or delays are expected, just smoother air protection for everyone!
Analyzed Economic Effects
4 provisions identified: 2 benefits, 1 costs, 1 mixed.
State and Federal Rules Aligned
The EPA approved revisions so Ohio's air permitting rules match Federal rules, creating consistent requirements at both levels. This change takes effect May 4, 2026, and applies to the listed chapters of Ohio Administrative Code (Chapter 3745-31).
Provisions Become Federally Enforceable
The Ohio rules approved into the SIP are "fully federally enforceable" under Clean Air Act sections 110 and 113 as of the rule's effective date, May 4, 2026. Regulated sources in Ohio are therefore subject to Federal enforcement of the approved provisions beginning on that date.
Specific Ohio Subsections Not Approved
The EPA did not include several specific Ohio rule provisions in the approval (for example: OAC 3745-31-01(A)(8); 3745-31-03(B)(1)(p); 3745-31-05(E); 3745-31-13(H)(1)(c); 3745-31-22(A)(3)(b); the 1-hour NO2 SIL in 3745-31-23(A); 3745-31-24(F); 3745-31-26(D); 3745-31-27(A)(1)(b); and 3745-31-34(B),(C),(D)). Those listed subsections are not part of the federally approved SIP.
No Tribal Application or Substantial Tribal Costs
The EPA states this SIP approval is not approved to apply on any Indian reservation land and will not impose substantial direct costs on Tribal governments. In areas of Indian country where a Tribe has jurisdiction, the rule does not apply.
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