Utah's Ozone Zone Grows: EPA Expands Clean Air Mandates Northward
Published Date: 9/25/2025
Proposed Rule
Summary
The EPA is set to approve Utah’s request to expand the Northern Wasatch Front ozone pollution zone, meaning more areas will follow clean air rules to fight smog. This change affects local communities and businesses, who’ll need to meet air quality standards starting when the new boundary goes into effect. It’s a big step to keep Utah’s air cleaner and healthier for everyone.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
More Utah areas face ozone rules
If you live in the newly expanded area of Utah’s Northern Wasatch Front, your community will be designated part of the 2015 8-hour ozone nonattainment area. That means the same Clean Air Act clean-air rules that apply to the original NWF area will apply to your area starting on the effective date of the final EPA action; the State of Utah submitted this expansion request on February 27, 2023.
New compliance obligations for Utah businesses
If you run a business located in the newly expanded portion of Utah’s Northern Wasatch Front, your area will be classified under the 2015 8-hour ozone nonattainment area and all applicable Clean Air Act requirements will apply to that area upon the effective date of the final EPA action. The State of Utah submitted the boundary expansion request on February 27, 2023.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-06275 — Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
The EPA just set new rules for renewable fuels in 2026 and 2027, including how much biofuel must be used. They’re also easing the 2025 cellulosic biofuel goals because production fell short and dropping renewable electricity as a qualifying fuel. These changes affect fuel producers and sellers, kick in mostly by mid-2026, and aim to keep America’s fuel cleaner and greener without breaking the bank.
2026-05167 — National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration
The EPA is proposing changes to rules for sterilization facilities that use ethylene oxide, a chemical that can be harmful if not controlled. They want to remove some strict risk-based limits, fix technical mistakes, and update how facilities prove they’re following the rules. If you run or work with these facilities, get ready for new deadlines and clearer standards by mid-2026, which could affect how you manage emissions and compliance costs.
2026-04646 — Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
The EPA is updating pollution rules for big trash-burning plants to cut harmful emissions like lead, mercury, and dioxins. These changes affect both new and existing facilities, tighten limits, remove some loopholes, and improve reporting, all starting May 11, 2026. This update will help clean the air by reducing over 3,200 tons of pollution each year, making communities healthier and safer.
2025-21788 — Oil and Natural Gas Sector Climate Review: Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources
The EPA is giving oil and natural gas companies more time to meet new pollution control rules and report their emissions. Deadlines for fixing leaks, monitoring equipment, and submitting state plans are pushed back to help everyone get ready without rushing. These changes keep the climate goals on track while easing the financial and timing pressure on the industry.
2025-20402 — Updated Definition of “Waters of the United States”
The EPA and Army Corps are updating the rules that decide which waters are protected under the Clean Water Act, following a 2023 Supreme Court decision. This change helps everyone know exactly which waters are covered, making it easier to protect lakes, rivers, and wetlands while respecting state and tribal rights. People and businesses affected should share their thoughts by January 5, 2026, as this update could impact water projects and environmental protections.
2025-19882 — Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping Under the Toxic Substances Control Act (TSCA); Revision to Regulation
The EPA is updating rules for companies that make or import PFAS chemicals, asking them to report certain info about these substances from 2011-2022. The changes add some smart exceptions to ease reporting on things companies probably don’t know, saving time and hassle. Comments on the proposal are open until late December 2025, so affected businesses should get ready to weigh in!
Previous / Next Documents
Previous: 2025-18567 — Passports; Procedures for Passport Couriers
The Department of State is updating rules for companies that hand-deliver passport applications and passports. These courier companies must now register with the Department and follow clear delivery steps to keep passport handling safe and smooth. This affects courier businesses and passport applicants, with no extra fees but a focus on security and proper timing.
Next: 2025-18594 — Air Plan Approval; Indiana; Huntington County 2010 Sulfur Dioxide Redesignation and Maintenance Plan
The EPA says Huntington County, Indiana, now meets clean air standards for sulfur dioxide and wants to officially mark it as a 'clean air' area. Indiana’s plan to keep the air fresh is up for approval and will become a rule everyone must follow. This means healthier air for locals without extra costs or delays.
Take It Personal
Get Your Personalized Policy View
Start a Free Government Policy Watch to see how policy affects your household, then upgrade to PRIA Full Coverage for year-round monitoring.
Already have an account? Sign in