AUTHORITY: section 203.050, RSMo 1975. Original rule filed Dec. 19, 1975, effective Dec. 29, 1975. Rescinded: Filed Dec. 10, 1979, effective April 11, 1980. Op. Atty. Gen. No. 331, Shell (11-15-71). The Missouri Air Conservation Commission has the authority under Chapter 203, RSMo (1969), to adopt emission control regulations, including limitations on the content of 10 CSR 10-5 fuels, which will attain and maintain national air quality standards, if the state standards are the same or more stringent.