(1) (a) The board, in adopting standards of quality for ambient air, shall conduct public hearings. (b) Notice of any public hearing for the consideration, adoption, or amendment of air quality standards shall specify the locations to which the proposed standards apply and the time, date, and place of the hearing. (c) The notice shall be: (i) (A) published at least twice in any newspaper of general circulation in the area affected; and (B) published on the Utah Public Notice Website created in Section 63F-1-701, at least 20 days before the public hearing; and (ii) mailed at least 20 days before the public hearing to the chief executive of each political subdivision of the area affected and to other persons the director has reason to believe will be affected by the standards. (d) The adoption of air quality standards or any modification or changes to air quality standards shall be by order of the director following formal action of the board with respect to the standards. (e) The order shall be published: (i) in a newspaper of general circulation in the area affected; and (ii) as required in Section 45-1-101.

(a) The board, in adopting standards of quality for ambient air, shall conduct public hearings.

(b) Notice of any public hearing for the consideration, adoption, or amendment of air quality standards shall specify the locations to which the proposed standards apply and the time, date, and place of the hearing.

(c) The notice shall be: (i) (A) published at least twice in any newspaper of general circulation in the area affected; and (B) published on the Utah Public Notice Website created in Section 63F-1-701, at least 20 days before the public hearing; and (ii) mailed at least 20 days before the public hearing to the chief executive of each political subdivision of the area affected and to other persons the director has reason to believe will be affected by the standards.

(i) (A) published at least twice in any newspaper of general circulation in the area affected; and (B) published on the Utah Public Notice Website created in Section 63F-1-701, at least 20 days before the public hearing; and

(A) published at least twice in any newspaper of general circulation in the area affected; and

(B) published on the Utah Public Notice Website created in Section 63F-1-701, at least 20 days before the public hearing; and

(ii) mailed at least 20 days before the public hearing to the chief executive of each political subdivision of the area affected and to other persons the director has reason to believe will be affected by the standards.

(d) The adoption of air quality standards or any modification or changes to air quality standards shall be by order of the director following formal action of the board with respect to the standards.

(e) The order shall be published: (i) in a newspaper of general circulation in the area affected; and (ii) as required in Section 45-1-101.

(i) in a newspaper of general circulation in the area affected; and

(ii) as required in Section 45-1-101.

(2) (a) The board may establish emission control requirements by rule that in its judgment may be necessary to prevent, abate, or control air pollution that may be statewide or may vary from area to area, taking into account varying local conditions. (b) In adopting these requirements, the board shall give notice and conduct public hearings in accordance with the requirements in Subsection (1).

(a) The board may establish emission control requirements by rule that in its judgment may be necessary to prevent, abate, or control air pollution that may be statewide or may vary from area to area, taking into account varying local conditions.

(b) In adopting these requirements, the board shall give notice and conduct public hearings in accordance with the requirements in Subsection (1).