Mo. Rev. Stat. § 643.190: Department to be air pollution agency for purposes of federal air pollution control acts.

The department of natural resources is hereby designated as the air pollution agency of the state for all purposes of any federal air pollution control act and may:

(1) Take all necessary or appropriate action to obtain for the state the benefits of any federal act;

(2) Apply for and receive federal funds made available under any federal act;

(3) Approve projects for which loans or grants under any federal act are made to any municipality or agency of the state;

(4) Participate through its authorized representatives in proceedings under any federal act and recommend measures for the reduction of air pollution originating within the state.