As of February 28th, 2023, NLM will discontinue the Wireless Information System for Emergency Responders (WISER), the website (https://wiser.nlm.nih.gov) and WebWISER (https://webwiser.nlm.nih.gov), and the standalone applications for Windows PCs, iOS app, and Android app.

Other sources of Hazmat or Chemical, Biological, Radiological, Nuclear (CBRN) information are available with the following resources:

• CHEMM (Chemical Hazards Emergency Medical Management) - HHS ASPR
• REMM (Radiation Emergency Medical Management) - HHS ASPR
• ERG2020 (Emergency Response Guidebook) - USDOT/PHMSA [search for ERG2020 in the App Stores]
• CAMEO Chemicals - NOAA/EPA
• NIOSH Pocket Guide to Chemical Hazards - CDC/NIOSH [search for NIOSH Mobile Pocket Guide in the App Stores]
• Agency for Toxic Substances and Disease Registry (ATSDR) website - CDC/ATSDR
• DHS's Hazardous Materials Release website - DHS
• PubChem - NIH/NLM
• The National Library of Medicine Data Distribution (data files for HSDB, ChemIDplus, etc.) - NIH/NLM

If you have questions or suggestions, please contact NLM Customer Service (https://support.nlm.nih.gov/support/create-case).