The software is only available to approved users so please register today.

Announcements (16 July 2019)

  • Windows version 4.6 and Android version 4.6 are available for download.
  • iPad version 4.6 is available on the App Store (requires a chemical companion account).
  • The new version includes hundreds of new chemicals, 300+ new detectors, fire extinguishment and combustion products, Toxic Industrial Chemicals in the Lab Identifier tool, updated decontamination data, water-based Binary Reactions, passive (wind) ventilation of vehicles, and many other updates to our suite of decision support tools.
  • We currently do not support mobile phone platforms such as the iPhone. Individual mobile apps are in development. If you or your agency are in need of specific requirements, please contact us to discuss solutions.


The Emergency Response Decision Support System (ERDSS) provides first responders with decision support for hazardous environments contaminated with chemical agents. This software tool, which operates on Windows and iOS, is provided free-of-charge to the military, law enforcement, and fire departments.
Features include:
  • Detailed information on thousands of common chemicals and synonyms
  • Personal Protective Equipment (PPE) including respirators
  • Hazardous Concentration Levels and Exposure Guidelines
  • Isolation and Protective Action Distances
  • ERG and Emergency Medical Information
  • Identify unknown chemicals using physical properties or exposure symptoms
  • Decision Support Tools and more...