California Code, Health and Safety Code - HSC § 1797.183

All peace officers described in Section 13518 of the Penal Code, except those whose duties are primarily clerical or administrative, shall be trained to administer first aid and cardiopulmonary resuscitation (CPR). The training shall meet standards prescribed by the authority, in consultation with the Commission on Peace Officers Standards and Training, and shall be satisfactorily completed by those officers as soon as practical, but in no event more than one year after the date of employment. Satisfactory completion of either refresher training or appropriate testing, which meets the standards of the authority, in cardiopulmonary resuscitation and other first aid, shall be required at periodic intervals as determined by the authority.