California Accidental Release Prevention

Fire & Rescue
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​The California Accidental Release Prevention (CalARP) program was implemented on January 1, 1997 and replaced the California Risk Management and Prevention Program (RMPP). The purpose of the CalARP program are to prevent accidental releases of substances that can cause serious harm to the public and the environment, to minimize the damage if releases do occur, and to satisfy community right-to-know laws. This is accomplished by requiring businesses that handle more than a threshold quantity of a regulated substance listed in the regulations to develop a Risk Management Plan (RMP). An RMP is a detailed engineering analysis of the potential accident factors present at a business and the mitigation measures that can be implemented to reduce this accident potential. The RMP contains:

  • Safety information
  • A hazard review
  • Operating procedures
  • Training requirements
  • Maintenance requirements
  • Compliance audits
  • Incident investigation procedures

The CalARP program is implemented at the local government level by Unified Program Agencies (UPAs). The CalARP program is designed so these agencies work directly with the regulated businesses. The UPAs determine the level of detail in the RMPs, review the RMPs, conduct facility inspections, and provide public access to most of the information. Confidential or trade secret information may be restricted. For public requests of information contact the UPAs directly.


Contact Information

Jack Harrah, Senior Emergency Services Coordinator
Hazardous Materials
Phone: (916) 845-8759 

​CalARP Documents



2018 Chevron El Segundo Chevron El Segundo2018 Chevron El Segundo HazMat - CalARP - Program 411/21/2019 10:33:12 PM
2018 Chevron Richmond Chevron Richmond2018 Chevron Richmond HazMat - CalARP - Program 411/21/2019 10:23:01 PM
2018 Phillips 66 Carson Phillips 66 Carson2018 Phillips 66 Carson HazMat - CalARP - Program 411/21/2019 10:30:22 PM
2018 Phillips 66 Rodeo Phillips 66 Rodeo2018 Phillips 66 Rodeo HazMat - CalARP - Program 411/21/2019 10:33:18 PM
2018 Phillips 66 Santa Maria Phillips 66 Santa Maria2018 Phillips 66 Santa Maria HazMat - CalARP - Program 411/21/2019 10:33:23 PM
2018 Phillips 66 Wilmington Phillips 66 Wilmington2018 Phillips 66 Wilmington HazMat - CalARP - Program 411/21/2019 10:33:28 PM
2018 Shell Martinez Shell Martinez2018 Shell Martinez HazMat - CalARP - Program 411/21/2019 10:33:35 PM
2018 Tesoro (Marathon) Carson Tesoro (Marathon) Carson2018 Tesoro (Marathon) Carson HazMat - CalARP - Program 411/21/2019 10:33:40 PM
2018 Tesoro (Marathon) Martinez Tesoro (Marathon) Martinez2018 Tesoro (Marathon) Martinez HazMat - CalARP - Program 411/21/2019 10:30:28 PM
2018 Torrance Refining Co Torrance Refining Co2018 Torrance Refining Co HazMat - CalARP - Program 411/21/2019 10:30:34 PM
2018 World Oil Refining South Gate World Oil Refining South Gate2018 World Oil Refining South Gate HazMat - CalARP - Program 411/21/2019 10:33:45 PM
CalARP Program 4 FSOR Program 4 FSOR.PDFCalARP Program 4 FSORFinal Statement of ReasonsHazMat - CalARP - Program 46/17/2019 4:16:34 PM
ISOR 2016 2016.pdfISOR 2016Initial Statement of ReasonsHazMat - CalARP - Program 46/17/2019 4:18:02 PM
Refinery Rpt Feb 2014 Rpt Feb 2014.pdfRefinery Rpt Feb 2014Governor's Interagency Refinery Task Force ReportHazMat - CalARP - Program 46/17/2019 4:18:17 PM
CalARP Frequently Asked Questions (FAQ) FAQ - Feb2014.pdfCalARP Frequently Asked Questions (FAQ)Frequently Asked Questions concerning the CalARP program - February 2014HazMat - CalARP6/17/2019 4:16:30 PM
CalARP Guidance Guidance Jan2005.pdfCalARP GuidanceCalARP Program Administering Agency Guidance - January 2005HazMat - CalARP6/17/2019 4:16:31 PM
CalARP Mixtures Frequently Asked Questions (FAQ) Mixtures FAQ - Jan2014.pdfCalARP Mixtures Frequently Asked Questions (FAQ)Frequently Asked Questions regarding CalARP Mixtures - January 2014HazMat - CalARP6/17/2019 4:16:32 PM
CalARP Regulations October 2017 Regs Title 19 Division 2 Chapter 4.5.pdfCalARP Regulations October 2017Cal OES Text of Regulations regarding the California Accidental Release Prevention Program. These regulations took effect October 2017 and include the new Program 4 requirements.HazMat - CalARP6/17/2019 4:16:40 PM
CalARP Seismic Assessment Guidance LEPC I Approved 08 07 2019.pdfCalARP Seismic Assessment GuidanceCalARP Seismic Assessment Guidance prepared by the CalARP Program Seismic Guidance Committee (January 2019). Approved by Region I LEPC on August 7, 2019HazMat - CalARP9/3/2019 5:07:53 PM

​Laws and Regulations

Listed below are State and Federal Laws and Regulations that affect the CalARP program:

State Statute: Health and Safety Code Sections 25531 - 25543.3

State Regulation: Title 19, California Code of Regulations, Division 2, Chapter 4.5

Related Federal Program: Clean Air Act 112(r) and Title 40, Code of Federal Regulations, Part 68 


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