(2) No regional authority is authorized to establish or alter areas or to adopt any rule or standard that is less strict than any rule or standard of the commission. The regional authority must submit to the commission for its approval all air quality standards adopted by the regional authority prior to enforcing any such standards.
(3) Subject to ORS 468A.140, 468A.145 and 468A.165, when a regional authority is exercising functions under subsection (1) of this section, the commission and the department shall not exercise the same functions in the same territory. The regional authority’s jurisdiction shall be exclusive. The regional authority shall enforce rules and standards of the commission as required to do so by the commission.
(4) The commission and the regional authorities may regulate, limit, control or prohibit by rule all air contamination sources not otherwise exempt within their respective jurisdictions. However, field burning and forestland burning shall be regulated by the commission and fire permit agencies as provided in ORS 468A.555 to 468A.620 and 468A.992, 476.380, 477.505 to 477.562 and 478.960. [Formerly 468.535; 1993 c.420 §1]