Or. Rev. Stat. § 811.800 – Operation of funeral vehicles with improper lights; penalty

(1) A person commits the offense of operation of a funeral escort vehicle or a funeral lead vehicle with improper lights if the person:
1. (a) Fails to equip the funeral escort vehicle or funeral lead vehicle with at least one “fire company warning light” as provided for under ORS 816.350 and described under ORS 816.285; or
2. (b) Uses the “fire company warning light” at any time except during a funeral procession.
(2) No ordinance or other regulation shall prohibit the use of warning lights on a funeral escort vehicle or funeral lead vehicle while driving in a funeral procession.
(3) The offense described in this section, operation of a funeral escort vehicle or funeral lead vehicle with improper lights, is a Class D traffic violation.

[1991 c.482 §6; 1993 c.18 §170; 1995 c.383 §1]