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CO-Benefits Risk Assessment Health Impacts Screening and Mapping Tool (COBRA)

  • Use the COBRA Web Edition

    Estimate the health impacts of changes in air pollution emissions with the new COBRA Web Edition.

  • Watch the COBRA Video

    Learn more about what COBRA is and how you can use it in less than two minutes. 

  • Develop Your Inputs for COBRA

    Use these factsheets to estimate emissions inputs for COBRA analyses.

  • New! AVERT–COBRA Web Connection

    COBRA Web Edition can now evaluate the health impacts of their energy efficiency and renewable energy scenarios quickly and easily by directly importing emissions results from EPA’s AVERT Web Edition.

Use COBRA

  • Use COBRA Web Edition
  • Download Desktop Edition COBRA
  • User Manual
  • How to Run Scenarios

Watch a Video

Link to  COBRA video

Use Web Edition

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Basic Information

  • What is COBRA?
  • Why use COBRA?
  • Who should use COBRA?
  • How does COBRA work?
  • COBRA Factsheet Series

Learn More

  • Contact EPA about COBRA
  • Frequently Asked Questions
  • Publications that Cite COBRA
  • Get updates about COBRA
  • COBRA Revision History

Download Desktop Edition

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Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 15, 2022
United States Environmental Protection Agency

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