California Code, Revenue and Taxation Code - RTC § 241

(1) “Hand tools” means hand-held implements and equipment, including hand-held power tools, of which any one may be transported to and from the workplace and which are necessary for the ordinary and regular performance of the employee's work, and also means the appropriate storage containers used to store those implements and that equipment.

(2) “Hand tools owned and supplied by an employee” means only those hand tools that are either owned by the employee prior to the employment or acquired and paid for by the employee during the employment, that the employee will continue to own after termination of the employment.

(3) “Employee” means any individual who is employed by an employer that directly or indirectly supervises that person and exercises control over the wages and working conditions of individual workers. “Employee” does not include a self-employed individual or an independent contractor.