Cal. LAB § 9032

The division shall make every effort to ascertain the identities of existing users of carcinogens and to notify, inform, and educate them about the requirements of this part. The division shall utilize all appropriate means of communication and education, including direct mailings to employers, the use of courses, workshops, and seminars, advertising in mass media, trade and employee publications, and professional and scientific journals, contact with trade associations, employee representatives, and professional and scientific societies, and cooperation with other governmental agencies to inform affected employees, employers, and the public of the requirements of this part.