California Code, Labor Code - LAB § 2051

(b)(1) “Employer” means any individual, partnership, corporation, limited liability company, joint venture, or association engaged in the business of car washing and polishing that engages any other individual in providing those services.

(2) “Employer” does not include any charitable, youth, service, veteran, or sports group, club, or association that conducts car washing and polishing on an intermittent basis to raise funds for charitable, education, or religious purposes. “Employer” does not include any licensed vehicle dealer or car rental agency that conducts car washing and polishing ancillary to its primary business of selling, leasing, or servicing vehicles. “Employer” does not include either a new motor vehicle dealer, as defined in Section 426 of the Vehicle Code, that is primarily engaged in the business of selling, leasing, renting, or servicing vehicles or an automotive repair dealer, as defined by subdivision (a) of Section 9880.1 of the Business and Professions Code, who is primarily engaged in the business of repairing and diagnosing malfunctions of motor vehicles. “Employer” does not include any self-service car wash or automated car wash that has employees for cashiering or maintenance purposes only.