Oregon Constitution Art. XI § 2

Corporations may be formed under general laws, but shall not be created by the Legislative Assembly by special laws. The Legislative Assembly shall not enact, amend or repeal any charter or act of incorporation for any municipality, city or town. The legal voters of every city and town are hereby granted power to enact and amend their municipal charter, subject to the Constitution and criminal laws of the State of Oregon, and the exclusive power to license, regulate, control, or to suppress or prohibit, the sale of intoxicating liquors therein is vested in such municipality; but such municipality shall within its limits be subject to the provisions of the local option law of the State of Oregon.