Oregon Revised Statutes Cities § 223.144

(1) A council, on its own motion or after receiving a petition for the formation of an economic improvement district signed by 33 percent or more of persons conducting business within the proposed district, may enact an ordinance establishing a procedure to be followed by the city in imposing a business license fee to raise revenue for the cost of an economic improvement. The business license fee authorized under this subsection may be in the form of a surcharge on an existing business license fee imposed by the city on any business, trade, occupation or profession carried on or practiced in the economic improvement district.

(2) In any ordinance adopted under subsection (1) of this section, a city shall not be authorized to: