Oregon Revised Statutes Public Health and Safety § 447.100

(1) No new hotel, motel, apartment house, dwelling, office building or other structure shall be constructed which employs a tank-type water closet that is not approved by the Director of the Department of Consumer and Business Services, with the approval of the State Plumbing Board, as meeting adequate standards of safety and sanitation.

(2) The director, with the approval of the board, shall cause to have adopted and published, pursuant to ORS chapter 183, a list of approved types of tank-type water closets meeting the requirements of this section.