Antifreeze within Residential Fire Sprinkler Systems 

The National Fire Protection Association (NFPA) has recently released an updated safety alert and an additional news release that discusses the use of antifreeze within residential fire sprinkler systems. This type of system accounts for less than five percent (5%) of the total residential fire sprinkler systems installed in the state. The updated safety alert can be found at and and the most recent news release at

At the August meeting of the National Fire Protection Association (NFPA) Standards Council meeting held in Boston, Massachusetts a final decision was made to issue the tentative interim agreements (TIA) 1000, 995, and 994 on NFPA 13, NFPA 13R and NFPA 13D, respectively to prohibit the use of antifreeze solutions within all NFPA 13D applications and within the dwelling unit portions of NFPA 13 and NFPA 13R sprinkler systems. It is important to note that this agreement is NOT A REGULATORY NOR A CODE REQUIREMENT but an avenue to move discussion and research further that may lead to changes in regulation.

To share information statewide, the Office of the State Fire Marshal (OSFM) has issued a number of informational bulletins on this subject. These bulletins are posted on our website at We are working very closely with a number of state and national organizations and other stakeholders to provide additional information and provide the essential facts. As more information is released, the OSFM will continue to send out emails and documents through our mass email system and website postings. Additionally, the OSFM strongly suggest reviewing the OSFM Residential Fire Sprinkler/Water Supply Purveyor Task Force reports developed for the implementation of residential fire sprinkler systems 2010 California Residential Code:

The sustained efforts of all stakeholders must focus on sharing information; working together; and continue to support the message that fire sprinklers are one of the most effective ways to save lives and property from fire; and to that end, assure the successful implementation of the 2010 California Residential Code and the residential fire sprinkler provisions.

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