Business and Professions Code § 13451
ARTICLE 6. Standards for Compression-Ignition Engine Fuels, Kerosene, and Fuel Oils
It is unlawful for any person to sell or deliver to any premises for the purpose of sale, any product as or purported to be “compression-ignition engine fuel,” “diesel fuel,” “kerosene,” or “fuel oil,” unless the product conforms to the specifications of this article.