Okla. Admin. Code § 165:56-5-12
End-user notice of rate increase. Prior to or concurrent with the effective date of any increased rate to a residential customer, for a service determined to be competitive, each reseller, shall provide notice to the affected end-users of the rate increase. The notice shall be provided by any of the following:
Added at 16 Ok Reg 2290, eff 7-1-99
Amended at 17 Ok Reg 20, eff 9-27-99 (emergency)
Amended at 17 Ok Reg 2333, eff 7-1-00
Amended at 35 Ok Reg 1050, eff 9-14-18