660.138	Definitions. (8/28/1988)
660.139	Waiver of interstate line charges for companies providing economy rates — ... (8/28/1988)
660.141	Economy rates, how established, applications — limited to one residence. (8/28/1988)
660.143	Installation cost to be reduced, how determined — changes in service or ... (8/28/1988)
660.145	Rules and regulations by commission — economy rate telephone service fund ... (8/28/1995)
660.147	Eligible persons, department's powers and duties. (8/28/1988)
660.149	Exemption from sales and use taxes — gross receipt tax, exemption or ... (8/28/1986)