Cal. Health and Safety Code § 8392

(a) A reduction facility shall maintain on its premises, or other business location within the state, an accurate record of all reductions performed, including all of the following information: (1) Name of the referring funeral director, if any. (2) Name of the deceased. (3) Date of the reduction. (4) Disposition of the reduced human remains, including split disposition where a portion of the remains are returned to the person entitled to control the disposition of the remains and a portion integrated into the soil in a conservation area pursuant to Section 7054.5. (5) Time and date that the body was inserted into the reduction chamber. (6) Time and date that the body was removed from the reduction chamber. (7) Time and date that final processing of the reduced human remains was complete. (8) Name and address of the authorizing agent. (9) Identification number assigned to the deceased, pursuant to Section 8393. (10) A photocopy of the disposition permit filed in connection with the disposition. (11) Any documentation of compliance with appropriate environmental and safety laws. (b) A reduction facility shall maintain on its premises, or other business location within the state, records of the maintenance performed on the reduction chamber or chambers. (c) Information described in this section shall be maintained for at least 10 years after the reduction is performed and shall be subject to inspection by the Cemetery and Funeral Bureau.