Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals and Toxics
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Pesticides
    • Radon
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • EPA Administrator
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory
Ground-level Ozone Pollution
Contact Us

Implementing the 2015 Ozone National Ambient Air Quality Standards (NAAQS) Memorandum

This October 2015 document provides an outline of how the EPA will work with state, federal and tribal air agencies to carry out the duties of air quality management (AQM) for the revised ozone standards. EPA will do this in a manner that maximizes common sense, flexibility and cost-effectiveness while abiding by the legal requirements of the Clean Air Act (CAA).

It outlines commitments that the EPA will endeavor to meet, and our expectations of our air agency partners with regard to some of these issues. It is not intended to be a comprehensive communication on implementing the revised ozone standards, nor does it constitute new guidance.

For more information, visit the 2015 Ozone NAAQS implementation rule page.

  • Implementing the 2015 Ozone National Ambient Air Quality Standards Memorandum (pdf) (3.12 MB, October 1, 2015)
  • Ozone Pollution Home
  • Ozone Basics
  • Health Effects
  • Ecosystem Effects
  • Setting and Reviewing Ozone Standards
  • Ozone Standards Regulatory Actions
  • Implementing Ozone Standards
  • Ozone Implementation Regulatory Actions
  • SIP Checklist Guide
  • SIP Training Presentations and Assistance
  • Implementation Data and Reports
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 9, 2023
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data.gov
  • Inspector General
  • Jobs
  • Newsroom
  • Open Government
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.