California Codes, Business and Professions Code - BPC, Division 3 — Professions and Vocations Generally, Chapter 20 — Electronic and Appliance Repair Dealers, Article 4 — Offenses Against the Chapter, Section 9844.5
No lien or other right to maintain possession of the equipment pending payment of charges for repair or installation, including those arising from Chapter 6 (commencing with Section 3046) of Title 14, Part 4, Division 3 of the Civil Code, shall exist where the total charges levied for the repair or installation of such equipment exceeds the higher of (1) any amount estimated in writing pursuant to Section 9844, or (2) a written revision of such estimate signed and dated by the owner of the equipment, or in lieu thereof an oral revision of the written estimate, authorized by the owner and fully documented by the service dealer.
Notes
Bars any lien or right to retain equipment for unpaid repair or installation charges when total charges exceed the higher of the written estimate or an authorized revision. The qualifying revision must either be written, signed, and dated by the owner or be an oral revision authorized by the owner and fully documented by the service dealer.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 9844.5 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-3/chapter-20/article-4/section-9844-5