EPA Approves Arizona's Plan to Meet Federal Air Quality Standards for Sulfur Dioxide
Official: Air Quality State Implementation Plans; Approvals and Promulgations: Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards
Reading: EPA approval of an existing State Implementation Plan extends the federal air quality standard framework without changing the stringency of the 1971 and 2010 sulfur dioxide limits.
The plan focuses on controlling emissions from industrial sources in that region.
In clear language
The EPA has approved Arizona's plan to reduce sulfur dioxide pollution in the Hayden area to meet federal air quality standards set in 1971 and updated in 2010. This approval allows Arizona to implement specific measures to bring the polluted area into compliance with federal limits. The plan focuses on controlling emissions from industrial sources in that region.
How does this affect you?
Pick the type of resident or organization you most identify with — we'll generate a plain-language breakdown of what changes for you and what you can do about it.
Who does this affect?
- Residents in and near Hayden, Arizona who breathe air affected by sulfur dioxide pollution
- Industrial facilities in the Hayden area that emit sulfur dioxide
- Arizona state environmental regulators responsible for air quality enforcement
What can you do?
- If you live in the Hayden area, monitor local air quality reports and take precautions during high pollution days
- Contact Arizona Department of Environmental Quality to learn about compliance deadlines and industrial emission controls in your area
Timeline
- August 20, 2026 (EPA approval posted)
No New Jersey official has a verified action on this policy yet.
Related policies
- Regulations.govAug 20, 2026EPA Approves South Carolina's Updated Air Quality Plan with New Department Name
The EPA approved South Carolina's updated air quality plan that reflects a change in the name of the state's environmental department. This is a routine administrative approval that does not change South Carolina's actual air quality rules or standards.
- Regulations.govAug 19, 2026EPA Approval of South Carolina's Plan to Reduce Nitrogen Oxide Pollution from Factories and Power Plants
The EPA is proposing to approve South Carolina's plan for reducing nitrogen oxide pollution and setting rules for how power plants and factories must test their emissions. This is a federal action that affects air quality standards in South Carolina and neighboring states, including how pollution may drift into New Jersey.
- Regulations.govAug 19, 2026EPA approval of South Carolina's new rules for air permits from smaller pollution sources
The EPA is proposing to approve South Carolina's updates to how it issues air quality permits for smaller pollution sources. This approval would let South Carolina implement these new permitting rules if finalized. The public can comment on this proposal until September 19, 2026.
- Regulations.govAug 19, 2026EPA approval of South Carolina's updated air pollution permit rules for smaller pollution sources
The EPA is reviewing South Carolina's changes to how it issues air quality permits for smaller pollution sources. This is a federal action that doesn't directly affect New Jersey's own air quality rules or programs. New Jersey residents and businesses may be indirectly affected if this decision influences how the EPA applies similar permit standards nationwide.