Cal. Bus. & Prof. Code § 7317
Except as provided in this article, it is unlawful for any person, firm, or corporation to engage in barbering, cosmetology, or electrolysis for compensation without a valid, unexpired license issued by the board, unless the person is participating in an externship program from an approved school, or in an establishment or mobile unit other than one licensed by the board, or conduct or operate an establishment, or any other place of business in which barbering, cosmetology, or electrolysis is practiced unless licensed under this chapter. Persons licensed under this chapter shall limit their practice and services rendered to the public to only those areas for which they are licensed. Any violation of this section is subject to an administrative fine and may be subject to a misdemeanor.
Ca. Bus. and Prof. Code § 7317