Public Resources Code § 5561.6

5561.6.

The district shall be primarily responsible for the prevention and suppression of all fires on any lands in its possession or control, excluding all lands of a district located within the exterior boundaries of any municipality or other fire protection district.

For the purposes of the prevention and suppression of fires on such lands, the board may enter into co-operative mutual aid agreements with the federal government, the State, any municipality, county or district, or any person, corporation or association.