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.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-18317, Updated Definition of “Waters of the United States”
The purpose of this supplemental notice of proposed rulemaking is for the U.S. Environmental Protection Agency (EPA) and the Department of the Army ("the agencies") to supplement and seek additional comment on certain aspects of an earlier proposal, published on November 20, 2025, to revise the regulations defining the scope of waters federally covered under the Clean Water Act in light of the U.S. Supreme Court's 2023 decision in Sackett v. Environmental Protection Agency. As stated in the agencies' November 20, 2025 Notice of Proposed Rulemaking (NPRM), the agencies intend for this rulemaking to provide greater regulatory certainty and increase Clean Water Act program predictability and consistency by clarifying the definition of "waters of the United States." After consideration of the public comments received on the NPRM, the agencies are issuing this notice to supplement the NPRM with additional regulatory options on certain aspects of the proposed rule.
2026-14112, Amendments and Nonconformance Penalties for Model Year 2027 and Later Heavy-Duty Highway Engines and Amendments to Inducement Provisions for SCR-Equipped Diesel Engines
Starting with model year 2027, the EPA is updating rules for big truck engines to make sure they last longer and pollute less. They’re also letting engine makers pay penalties if their engines don’t meet standards, and tightening rules for special pollution-control systems on diesel engines. These changes affect truck and engine makers and kick in soon, with public feedback due by August 29, 2026.
2026-13667, Minor New Source Review Program Air Permitting Public Participation Requirements for State Implementation Plans
The EPA wants to give states more freedom to decide how much public input is needed when approving small air pollution sources or changes. This means local air agencies can tailor public participation to fit their community’s needs while still protecting air quality. If you’re involved in air permits, watch for comment deadlines and possible virtual hearings this summer!
2026-13263, Revisions To Establish the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6) for Public Water Systems
The EPA is rolling out the sixth Unregulated Contaminant Monitoring Rule (UCMR 6) to check for new, sneaky chemicals in public drinking water. Big water systems serving 3,300+ people and some smaller ones will test for 30 different contaminants, including certain PFAS and pesticides, to keep our water safe. Comments and feedback are open until late August 2026, and the EPA will host fun online meetings to chat about the plan!
2026-12927, U.S. Ecology Nevada, Inc. High Mercury Subcategory Wastes Land Disposal Restrictions Variance
The EPA is giving U.S. Ecology Nevada a special green light to handle and dispose of high-mercury waste a bit differently than usual. This means mercury waste treated in Pennsylvania can now be safely sent to U.S. Ecology’s Nevada site for disposal under new rules starting July 27, 2026. This change helps protect people and the environment while keeping mercury waste management efficient and cost-effective.
2026-11047, National Emission Standards for Hazardous Air Pollutants From Hazardous Waste Combustors: Residual Risk and Technology Review
The EPA just updated rules for places that burn hazardous waste, like incinerators and boilers, to keep the air safe and clean. They confirmed current standards work well but added new limits on harmful gases like hydrogen fluoride and hydrogen cyanide. These changes start June 3, 2026, and include easier electronic reporting and some new rules for startup and shutdown times—helping protect health without big costs.
Previous / Next Documents
Previous: 2026-11726, Special Local Regulation; CFK Swim Around Key West, Key West, FL
On June 13, 2026, the Coast Guard will enforce special rules around Key West to keep everyone safe during the College of the Florida Keys Swim Around Key West event. Boat operators in the area must follow instructions from Coast Guard patrols between 6 a.m. and 4 p.m. This means some waterways will have temporary restrictions, so plan ahead to avoid delays or fines.
Next: 2026-11729, Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
The FAA is updating the rules for how pilots approach and take off from certain airports to keep flights safe and smooth. These changes include new or revised flight paths and obstacle rules based on new technology and airspace updates. Pilots and airports affected need to follow these updates starting June 11, 2026, with no extra costs involved.