California Code, Government Code - GOV § 32204

“County foresters, firewardens and firemen” include all county foresters, county firewardens, deputy or assistant county foresters, deputy or assistant county firewardens, fire apparatus engineers, fire prevention inspectors, forest firemen, fire patrolmen, and foremen assigned to fire suppression crews, and all other personnel not specifically excluded who are assigned to active fire suppression in any county forester's or county firewarden's department and all officers, engineers, and firemen of any county fire protection district, and all other personnel not specifically excluded who are assigned to active fire suppression in any county fire protection district.  Bookkeepers, stenographers, cooks, laborers, county fire protection district fire foremen, call firemen, and volunteer employees, or persons who are not employed for full time duty, or other employees not performing the duties of any of the persons enumerated and any honorary deputy county firewarden or honorary deputy county forester, or voluntary firewarden holding appointment as such but receiving no compensation therefor and not regularly performing particular official duties are not included.  In cases of doubtful eligibility, the Board of Retirement shall be the deciding authority.