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
    • EPA Administrator
    • Organization Chart
    • Staff Directory
    • Planning, Budget, and Results
    • Jobs and Internships
    • Headquarters Offices
    • Regional Offices
    • Lab and Research Centers
Community Multiscale Air Quality Modeling System (CMAQ)
Contact Us

Contact Us about the Community Multiscale Air Quality Modeling System

Please contact us using the form below.  Note: All information submitted by visitors is voluntary. Learn more about the Privacy Act at EPA.

  • Do you have a question that is not answered on our Frequent Questions page?
  • Would you like to collaborate with the CMAQ Team?
  • Do you have any suggestions for how we can make CMAQ better?

Technical support for CMAQ, including questions about model inputs, downloading, compiling, and running the model, and pre- and post-processing utilities, should be directed to the CMAS Center User Forum. 

Mailing Address:

U.S. Environmental Protection Agency
Center for Environmental Measurement and Modeling Atmospheric & Environmental Systems Modeling Division Mail Code: D305-01 Research Triangle Park, NC 27711

If you would like a response, please add your email address.
  • CMAQ Home
  • Learn About CMAQ
  • Browse CMAQ Applications
  • Download CMAQ
  • CMAQ Research
  • CMAQ Community
  • CMAQ Data
  • About Us
  • Frequent Questions
Contact Us to ask a question, provide feedback, or report a problem.
United States Environmental Protection Agency

Discover.

  • Accessibility
  • 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.

Last updated on April 1, 2022