The terms and conditions of Subchapter 9 may be changed, modified, revised, supplemented or deleted upon written agreement between a business end-user and the telecommunications service provider or IXC. This Section shall not apply to residential end-users.

Added at 18 Ok Reg 2415, eff 7-1-01

Amended at 26 Ok Reg 1127, eff 7-1-09

Amended at 29 Ok Reg 1549, eff 7-12-12