Or. Rev. Stat. § 818.250
The governing body of a rural fire protection district or of a municipal fire department may issue written authorization for the use of fire company warning lights on vehicles that are used while driving to a fire station or fire location in response to a fire alarm. Written authorization issued under this section shall comply with all of the following:
(1) Written authorization may be issued only to authorize use of the warning lights on any vehicle, whether publicly or privately owned, if used by:
[1983 c.338 §540; 1985 c.16 §277]