Cal. Business and Professions Code § 21140.1

Notwithstanding the terms of any franchise, a franchisee shall not be precluded from purchasing fuel from any available source if the franchisor is unable or refuses to supply the franchisee with fuel. Failure to deliver contracted, agreed upon, or requested quantities of fuel within 72 hours of such specified contract time, agreement, or request shall constitute an inability or refusal to supply a franchisee. Requests for deliveries of fuel may be telephoned to the franchisor, except that when the franchisee intends to seek fuel from another supplier pursuant to Section 21140.1 should the franchisor be unable or refuse to supply him or her, a request for fuel must be made in writing to a franchisor at least 48 hours before desired delivery. Once such notice has been given, and the franchisor has failed to deliver contracted, agreed upon, or requested quantities of fuel no further written request shall be required from the franchisee until such time as the franchisor notifies the franchisee in writing that the franchisor is prepared to deliver contracted, agreed upon, or requested quantities of fuel. Nondelivery of fuel by the franchisor due to accident, fire, theft or other similar acts shall not constitute an inability or refusal to supply the franchisee. If the franchisee sells fuel supplied from a source other than the franchisor, the franchisee shall prominently post a sign disclosing this fact to the public on each pump dispensing fuel purchased from other than the franchisor. The sign shall not be smaller than 8″ x 10″ with letters not less than three inches in height. This provision shall not be construed to permit a franchisee to purchase more fuel than may be allowed by any federal statute or regulation.