Code Development & Analysis

2010 Emergency Regulations - Antifreeze Solutions in Residential Fire Sprinkler Systems

On October 19, 2010, the California Building Standards Commission approved the Office of the State Fire Marshal's emergency regulations amending sections of the California Code of Regulations (CCR), Title 24, Part 2, 2.5, and 9 (California Building Code, California Residential Building Code, and California Fire Code). The approved emergency regulations addresses the use of antifreeze solutions in concentrations not to exceed 40% propylene glycol and concentrations of glycerin not exceeding 50% in residential occupancies and other dwelling units for the protection of sprinkler pipe in freezing conditions. This change became be effective on January 1, 2011. This emergency rule making extends the initial emergency with further modifications.


Amend California Building Standards Codes for regulations regarding modifications to NFPA 13, 13D and 13R Fire Sprinkler Standards.

Emergency standards pertaining to regulations in Part 2, CBC

Emergency standards pertaining to regulations in Part 2.5, CRC

Emergency standards pertaining to regulations in Part 9, CFC

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