California Codes, Civil Code - CIV, Division 3 — Obligations, Part 2 — Contracts, Title 2 — Manner of Creating Contracts, Section 1622
All contracts may be oral, except such as are specially required by statute to be in writing.
Notes
Allows contracts to be made orally unless a statute specifically requires the particular contract to be in writing. Oral contracting is therefore the default under this provision, with written form mandatory only for categories that another statutory rule expressly places within a writing requirement.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 1622 | https://laws.lexinter.net/codes/california/civil-code/division-3/part-2/title-2/section-1622