(a) This part does not apply to a transaction governed by the Oil and Gas Lien Act (Chapter 2.5 (commencing with Section 1203.50) of Title 4 of Part 3 of the Code of Civil Procedure).
(b) This part does not apply to or change improvement security under the Subdivision Map Act (Division 2 (commencing with Section 66410) of Title 7 of the Government Code).
(c) This part does not apply to a transaction governed by Sections 20457 to 20464, inclusive, of the Public Contract Code.