Air Plan Approval; Connecticut; Ozone Ambient Air Quality Standard and Adhesive and Sealants Regulation Revisions
What happened
The Environmental Protection Agency (EPA) approved a revision to Connecticut's State Implementation Plan (SIP), as submitted on April 30, 2025. This action, signed by Donald Trump, updates Connecticut's ozone ambient air quality standard to match the national standard and clarifies how volatile organic compounds (VOCs) are calculated in adhesive and sealant products. The revisions include adding the 0.070 parts per million ozone standard and clarifying VOC calculation methods in RCSA sections 22a-174-24 and 22a-174-44. This rule is effective on July 13, 2026.
Why it matters
This approval ensures Connecticut's air quality regulations for ozone align with national standards, potentially improving air quality. It also provides clearer guidelines for businesses manufacturing or using adhesives and sealants regarding volatile organic compound content and compliance, which could affect product formulations and costs.
Who it affects
- ›Connecticut residents
- ›Adhesive and sealant manufacturers
- ›Businesses using adhesive and sealant products
- ›Environmental Protection Agency (EPA)
- ›State of Connecticut
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