California Code, Health and Safety Code - HSC § 117435

(a) Applicants may be registered under any terms, conditions, orders, and directions as the health officer or his or her duly authorized representative may deem necessary for the protection of human health and comfort. Each health officer and his or her duly authorized representative may require any and all persons who are registered with the health officer to clean septic tanks, cesspools, or sewage seepage pits or to dispose of the cleanings therefrom, to file with the health officer at any time and at any frequency or intervals as the health officer or duly authorized representative may desire, a statement specifying all of the following:

(b) The health officer may require the statement to be sworn to before a notary.

(c) Any and all persons registered with the health officer to clean septic tanks, cesspools, or sewage seepage pits, or to dispose of the cleanings therefrom, shall also provide a statement as required pursuant to paragraph (3) of subdivision (a) to a regional board as defined pursuant to Section 13050 of the Water Code.