California Code, Civil Code - CIV § 8174

(a) A mortgage, deed of trust, or other instrument securing a loan, any of the proceeds of which may be used for a work of improvement, shall bear the designation “Construction Trust Deed” prominently on its face and shall state all of the following:

(b) Failure to comply with subdivision (a) does not affect the validity of the mortgage, deed of trust, or other instrument.

(c) Failure to comply with subdivision (a) does not relieve a person required to give preliminary notice from that duty.

(d) The county recorder of the county in which the instrument is recorded shall indicate in the general index of the official records of the county that the instrument secures a construction loan.