Business and Professions Code § 8646.5

A notice of noncompliance shall be issued to a licensee or registered company whenever an authorized representative of the board finds that a pesticide application, fumigation or extermination procedure being performed by the licensee or registered company is not in compliance with applicable laws, rules, or regulations. Upon receiving such notice, the licensee or registered company shall discontinue such pest control work until the procedure is brought into compliance. Failure to discontinue after receiving a notice of noncompliance is a ground for disciplinary action.