1.  If a county required to establish or participate in an air pollution control program fails to do so, or if the Commission believes that a program previously approved is inadequate, it shall hold a public hearing. If it finds that an adequate program has not been adopted or that a program has become inadequate, it shall fix a time within which necessary corrective measures are to be taken.

2.  If the prescribed measures are not so taken, the Commission shall direct the Department to administer an adequate air pollution control program within the county, which shall be a charge on the county, and may supersede any existing county air pollution control program.