Cal. Health and Safety Code § 1797.225

(a) A local EMS agency may adopt policies and procedures for calculating and reporting ambulance patient offload time, as defined in subdivision (b) of Section 1797.120. (b) A local EMS agency that adopts policies and procedures for calculating and reporting ambulance patient offload time pursuant to subdivision (a) shall do all of the following: (1) Use the statewide standard methodology for calculating and reporting ambulance patient offload time developed by the authority pursuant to Section 1797.120. (2) Establish criteria for the reporting of, and quality assurance followup for, a nonstandard patient offload time, as defined in subdivision (c). (c) (1) For the purposes of this section, a “nonstandard patient offload time” means that the ambulance patient offload time for a patient exceeds a period of time designated in the criteria established by the local EMS agency pursuant to paragraph (2) of subdivision (b). (2) “Nonstandard patient offload time” does not include instances in which the ambulance patient offload time exceeds the period set by the local EMS agency due to acts of God, natural disasters, or manmade disasters.