4 CSR 240-30.010
Warner v. Southwestern Bell Telephone Co., 428 SW2d 596 (Mo. 1968). Telephone company engaged in intrastate commerce subject to statutes establishing PSC and to its lawful rules.
State ex rel. City of West Plains v. Public Service Commission, 310 SW2d 925 (Mo. banc 1958). Rules prescribed by commission for telephone company pertaining to manner in which utility would thereafter treat expense item of license and occupation taxes became integral part of company's schedule of rates and charges.