California Accidental Release Program

The California Accidental Release Prevention Program (CalARP) was adapted from the Federal accidental release program established by the Clean Air Act Section 112 (r) and modified to meet California's needs. This program requires any business that handles more than threshold quantities of a Regulated Substance (RS) to develop a Risk Management Plan (RMP). The RMP is implemented by the business to prevent or mitigate releases of regulated substances that could have off-site consequences through hazard identification, planning, source reduction, maintenance, training, and engineering controls. 

In Oakland, businesses that handles any RS within 1000 feet of a sensitive receptor, including residential areas, schools, public gathering places, or civil facilities, may be required to submit a hazardous materials assessment report and remediation plan (HMARRP) and should contact the Oakland CUPA at (510) 238-3927.

Regulated Substances and their threshold quantities can be found in Title 19, California Code of Regulations, in the following tables:

• Table 1: Federal list of Toxic Regulated Substances

• Table 2: Federal list of Flammable Regulated Substances

• Table 3: California list of Regulated Substances

RMP Preparation Guidance Links

U.S. EPA Chemical Emergency Preparedness and Prevention 

Governor's Office of Emergency Services