CAMEO Software Suite

U.S. Environmental Protection Agency, NOAA Office of Response and Restoration

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This suite of tools includes four core programs that can be used for all-hazards emergency response and planning—but especially for incidents that involve hazardous chemicals. The programs—ALOHA, CAMEO Chemicals, CAMEO Data Manager, and MARPLOT—can be downloaded individually and run without an Internet connection. Additionally, CAMEO Chemicals is available as a website and an app for phones and tablets.


  • Estimate how a chemical cloud travels after a spill and identify areas where a threat to people may exist
  • Access critical response recommendations and physical properties for thousands of hazardous chemicals
  • Manage emergency planning and response data about chemicals stored or transported in local communities
  • Map threat zones and planning data to determine potential impacts and make decisions

Additional Information