California Accidental Release Prevention 

The County of San Diego Department of Environmental Health (DEH), Hazardous Materials Division (HMD) is the local agency responsible for implementing the CalARP Program in San Diego County. The term HMD and Certified Unified Program Agency (CUPA), can be used interchangeably. A goal of the CalARP Program is to reduce the likelihood and severity of consequences of extremely hazardous materials releases. Examples of extremely hazardous materials (Regulated Substances) include toxic gases such as chlorine, ammonia, sulfur dioxide and other toxic materials. The CUPA coordinates with facilities that handle or store extremely hazardous materials to evaluate the risks associated with covered processes and require appropriate Risk Management Programs (RMP) at these facilities. A successful RMP includes all of the following elements:  

  • Worst-case release scenario with community effects
  • Hazard Assessment for Regulated Substances 
  • Process Hazard Analysis or Hazard Review where these substances are used
  • Accidental release prevention program  
  • Equipment, procedures and training to prevent releases and mitigate releases  
  • Comprehensive emergency response plan  

The focus of the CalARP Program is prevention through planning, safety evaluation, and hazard awareness.  For more information regarding the local implementation of the CalARP Program, please contact the CalARP Specialist, Manon Maschue at (858) 518-7390.    

 CalARP Regulatory Authority
 5-Year RMP Update Requirement

The RMP needs to be updated at least once every five years from the date of its initial submission. The owner or operator is required to: 

  • Review all sections of the RMP & update the RMP as appropriate
  • Certify that the entire updated RMP is true, accurate, and complete
  • Submit the updated RMP to the CUPA by the facility's 5-year update due date
  • 5-Year RMP Updates are subject to the review process described below
 RMP Review Process

Upon submission of an RMP (new RMP or 5-Year RMP Update), and after the initial review (referred to as a completeness check) of the RMP, the CUPA notifies the facility if any deficiencies are present. The facility has 60 days to respond and correct the deficiencies. Once the deficiencies are corrected, the CUPA issues an acceptance letter and posts a public notice on HMD's website indicating that the RMP is complete. Once posted, the CUPA will make the RMP available at their main office for public review and commenting for 45 days. The CUPA will conduct a final review (referred to as an evaluation review) of the RMP in which public comments are considered and the facility may be required to make technical revisions to the RMP.

 Guidance Documents

This document provides guidance to help owners and operators of facilities that manufacture, use, store, or otherwise handle certain extremely hazardous chemicals to determine if they are subject to EPA’s Chemical Accident Prevention regulations in 40 CFR part 68 and, if so, to comply with those regulations

 Additional information about CalARP requirements
 California Environmental Reporting System (CERS) and CalARP

At this time, there are no CalARP-specific CERS reporting requirements; however, all CUPA-regulated businesses are required by law (Assembly Bill 2286) to submit business information through CERS for the following elements:

  • Unified Program Facility Permit
  • Hazardous Materials Business Plan (HMBP)
  • Hazardous Waste
  • Hazardous Waste Onsite Treatment
  • Hazardous Waste and Materials Tank Closures
  • Remote Waste Consolidation
  • Recyclable Materials Reports
  • Underground Storage Tanks (UST)
  • Aboveground petroleum storage over 1,320 gallons (APSA/SPCC)

For directions on how to access your facility information, please refer to HMD's CERS Information website.  

Please do not submit your Risk Management Plan or other CalARP documents through CERS

You may  e-mail, fax or mail documents to the CUPA.