Connecticut Ozone Rules Get EPA Rubber Stamp
Published Date: 6/11/2026
Rule
Summary
The EPA is giving a thumbs-up to Connecticut’s updated air quality rules that match national ozone standards and clear up how to measure chemicals in adhesives and sealants. This means cleaner air rules for businesses and residents starting July 13, 2026, with no surprise costs expected. It’s a win for health and the environment, keeping Connecticut in line with the Clean Air Act.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Connecticut Adopts 0.070 ppm Ozone
Connecticut's ozone standard has been revised to match the national standard of 0.070 parts per million (ppm) and EPA approved that revision into the State Implementation Plan (SIP). The EPA approval makes the updated ozone standard federally enforceable in Connecticut as of July 13, 2026.
Adhesives/Sealants VOC Methods Clarified
Connecticut's rules now clarify how to calculate volatile organic compound (VOC) content for adhesive and sealant products, and EPA approved those clarifications into the SIP so they are federally enforceable as of July 13, 2026. If you run a Connecticut business that makes or sells adhesives or sealants, these clarified calculation and test-method rules apply to your products under the SIP.
EPA Certifies No Major Economic Burden
For this approval, EPA certified the rule will not have a significant economic impact on a substantial number of small entities, will not require information collections under the Paperwork Reduction Act, and will not result in $100 million or more in annual expenditures under the Unfunded Mandates Reform Act. These certifications apply to EPA's approval of Connecticut's revisions and are effective with the SIP approval.
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