Cal. Lab. Code § 2660
No person shall do industrial homework within this state unless he has in his possession a valid homeworker's permit issued to him by the division. The permit shall be issued for a fee of twenty-five dollars ($25), and shall be valid for industrial homework performed for the licensed employer of industrial homeworkers, named therein, for a period of one year from the date of its issuance unless sooner revoked or suspended. Application for a permit shall be made in such form as the division may by regulation prescribe. The permit shall be valid only for work performed by the applicant himself in his own home. The division may waive the fee for a homeworker's permit in cases where the applicant requests such waiver, and can establish that payments of the fee would result in financial hardship.
Ca. Lab. Code § 2660