Code Civ. Proc., § 1203.65

All liens granted by this chapter shall be perfected and enforced in accordance with the provisions hereof whether such liens arise before or after the effective date of this chapter; provided, however, that any unperfected lien granted under any statute in effect prior to the effective date of this chapter and which could be subsequently perfected in accordance with such prior statute were it not for the existence of this chapter may be perfected and enforced in accordance with the provisions of this chapter if the statement of lien required to be recorded under Section 1203.58 is recorded within the time therein required or within two months after the effective date of this chapter, whichever period is longer; and provided further, that the validity of any lien perfected prior to the effective date of this chapter in accordance with the requirements of any statute in effect prior to such effective date shall be determined on the basis of such prior statute but the enforcement thereof shall insofar as possible be governed by the provisions of this chapter.