Cal. Business and Professions Code § 7363

(a) A course in hairstyling established by a school shall consist of not less than 600 hours of practical and technical instruction. (b) The curriculum for a hairstyling course shall include, at a minimum, technical and practical instruction in the following areas: (1) One hundred hours in health and safety, which includes hazardous substances, chemical safety, safety data sheets, protection from hazardous chemicals, preventing chemical injuries, health and safety laws and regulations, and preventing communicable diseases. (2) One hundred hours in disinfection and sanitation, which includes disinfection procedures to protect the health and safety of consumers as well as the technician and proper disinfection procedures for equipment used in establishments. (3) (A) Two hundred hours in hairstyling services, which includes arranging, blow drying, cleansing, curling, dressing, hair analysis, shampooing, waving, and nonchemical straightening, and hair cutting including the use of shears, razors, electrical clippers and trimmers, and thinning shears, for wet and dry cutting. (B) Instruction in hairstyling services shall include instruction regarding the provision of services to individuals with all hair types and textures, including, but not limited to, various curl or wave patterns, hair strand thicknesses, and volumes of hair.