Section 22A-2-4a - Use of belt air(a)Definitions. - For purposes of this section, "belt air" means the use of a belt conveyor entry as an intake air course to ventilate the working sections of a mine or areas where mechanized mining equipment is being installed or removed.(b) Upon the effective date of the enactment of this section, belt air may not be used to ventilate the working sections of a mine or areas where mechanized mining equipment is being installed or removed: Provided, That if an alternative method of ventilation will at all times guarantee no less than the same measure of protection afforded the miners of an underground mine by the foregoing or if the application of the foregoing to an underground mine will result in a diminution of safety to the miners in the mine, the director may approve the interim use of belt air pursuant to the following. The MSHA-approved plan for use of belt air shall serve as the state-approved plan: Provided, That the MSHA-approved plan shall contain all provisions of state mining law as set forth in state code or code of state rules.Amended by 2018 Acts, ch. 152 (SB 626), eff. 6/6/2018.