California Code, Education Code - EDC § 58803

Notwithstanding any other provision of law, specialized secondary programs may select as teachers noncredentialed persons who possess unique talents or skills from business, performing arts, or postsecondary institutions.  No noncredentialed person shall be retained as a teacher in a specialized secondary program unless, within 60 days after the governing board has hired such a person, the Commission on Teacher Credentialing has issued a certificate of clearance for him or her, which the commission shall issue when it has verified the person's personal identification and good moral character.

Each school district governing board that employs noncredentialed persons to teach in specialized secondary programs shall annually report to the Superintendent of Public Instruction the number of those persons employed, the subjects they are employed to teach, and the unique talents and skills they possess.