Cal. Business and Professions Code - BPC § 20030. Section 20030.
All notices of termination or nonrenewal required by this chapter:
(a)
Shall be in writing;
(b)
Shall be posted by registered, certified or other receipted mail, delivered by telegram or personally delivered to the franchisee; and
(c)
Shall contain a statement of intent to terminate or not renew the franchise:
(1)
Together with the reasons therefor, and
(2)
The effective date of such termination or nonrenewal or expiration.