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California Accidental Release Prevention

The California Accidental Release Prevention (CalARP) program's purpose is to prevent or mitigate accidental releases of extremely hazardous substances. CalARP facilities must maintain Risk Management Plans.


California Code of Regulations, Title 19 Division 2, Chapter 4.5
California Health and Safety Code, Chapter 6.95, Article 2


Facilities which store regulated substances​ above state or federal threshold quantities are subject to the CalARP program. HMCD regulates CalARP facilities anywhere in the county except for the cities of Santa Clara, Sunnyvale, and Gilroy.

General Requirements

  • Submit a Risk Management Plan to HMCD.
  • Pay an annual invoice to keep your permit active.​

​Forms & Documents


To view permit fees, please click here.

Last updated: 12/11/2017 8:31 AM