Oregon Revised Statutes Public Health and Safety § 468A.165

(1) The Environmental Quality Commission may require that necessary corrective measures be undertaken within a reasonable time if, after hearing, it finds that:

(2) Notice of the hearing required under subsection (1) of this section shall be sent to the regional authority not less than 30 days prior to the hearing.

(3) If the regional authority fails to take the necessary corrective measures within the time required, the commission shall undertake a program of administration and enforcement of the air quality control program in the territory of the regional authority. The program instituted by the commission shall supersede all rules, standards and orders of the regional authority.

(4) If, in the judgment of the commission, a regional authority is able to requalify to exercise the functions authorized in ORS 468A.135, the commission shall restore those functions to the regional authority and shall not exercise the same functions in the territory of the regional authority.