Cal. Food & Agric. Code § 38251

Evaporated reduced-fat milk or condensed reduced-fat milk is the liquid food obtained by the partial removal of water and milk fat from milk. The milk fat and total milk solids content of the food shall not be less than 2 percent and 19.5 percent, respectively. Evaporated reduced-fat milk shall contain added vitamins A and D as prescribed in Section 38252. These products shall be homogenized and packaged in hermetically sealed containers and so processed by heat, either before or after sealing, so as to prevent spoilage.