California Code, Health and Safety Code - HSC § 18106

(a) As used in this section, “lien creditor” means a creditor who has acquired a lien on a manufactured home, mobilehome, commercial coach, truck camper, or floating home subject to registration under this part by attachment, levy, or the like and includes an assignee for benefit of creditors from the time of assignment, and a trustee in bankruptcy from the date of the filing of the petition, or a receiver in equity from the time of appointment, as contemplated by Section 9102 of the Commercial Code.

(b) Except as provided in subdivision (c), an unperfected security interest in a manufactured home, mobilehome, commercial coach, truck camper, or floating home subject to registration under this part is subordinate to the rights of a person who becomes a lien creditor before the security interest is perfected.

(c) If a security interest in a manufactured home, mobilehome, commercial coach, truck camper, or floating home becomes perfected as contemplated by subdivision (a) of Section 18080.7, the security interest is senior to the rights of a lien creditor which arise between the time the security interest attaches and the time of perfection.

(d) A person who becomes a lien creditor while a security interest in a manufactured home, mobilehome, commercial coach, truck camper, or floating home is perfected by any of the means contemplated by subdivision (b) of Section 18080.7 takes subject to the perfected security interest only to the extent that it secures advances either made before that person becomes a lien creditor or made thereafter which would otherwise be senior to a competing security interest as provided in subdivision (e) of Section 18105.