New Jersey's 10-Year Clean Air Plan Approved by EPA
Published Date: 11/18/2025
Rule
Summary
The EPA is giving a thumbs-up to New Jersey’s plan to keep the air clean in Northern and Southern counties for another 10 years, focusing on tiny, harmful particles called PM2.5. This means folks living there can breathe easier without new costly changes for now. The plan kicks in December 18, 2025, and helps make sure transportation projects won’t mess with air quality goals.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
PM2.5 Maintenance Approved for NJ Counties
EPA approved New Jersey's second 10-year limited maintenance plan to keep the 2006 24-hour PM2.5 standard in the named Northern and Southern New Jersey counties. The approval covers Bergen, Essex, Hudson, Mercer, Middlesex, Monmouth, Morris, Passaic, Somerset, Union, Burlington, Camden, and Gloucester Counties and is effective December 18, 2025.
Meets Transportation Conformity Requirements
EPA found New Jersey's limited maintenance plan for the 2006 24-hour PM2.5 standard adequate for transportation conformity requirements. That determination applies to the same Northern and Southern New Jersey maintenance areas and is part of the final approval effective December 18, 2025.
No Significant Small-Entity Economic Impact Certified
EPA certified that this SIP approval does not have a significant economic impact on a substantial number of small entities and does not contain an unfunded mandate or significantly affect small governments. This certification is part of the statutory and executive order reviews accompanying the December 18, 2025 final rule.
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