California Codes, Business and Professions Code - BPC, Division 3 — Professions and Vocations Generally, Chapter 19.5 — Aircraft Repair, Section 9795
All work done by a repairperson, including all warranty work, shall be recorded on an invoice and shall describe all work done and parts supplied.
Work and parts shall be listed separately on the invoice, which shall also state separately the subtotal prices for work and for parts, not including sales tax, and shall state separately the sales tax, if any, applicable to each.
If any used, rebuilt, or reconditioned parts are supplied, the invoice shall clearly state that fact. If a part of a component system is composed of new and used, rebuilt, or reconditioned parts, the invoice shall clearly state that fact.
One copy of the invoice shall be given to the customer and one copy shall be retained by the repairperson.
Notes
Requires a repairperson to invoice all work, including warranty work, describing work and parts separately, separately stating work and parts subtotals before tax and applicable sales tax, and disclosing used, rebuilt, reconditioned, or mixed-condition parts. Requires one invoice copy for the customer and one retained by the repairperson.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 9795 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-3/chapter-19-5/section-9795