Maryland Public Utility Companies Section 8-404

      Unless the telephone company or reseller complies with authorization and confirmation procedures adopted by the Commission and by federal law and regulation, a telephone company or reseller may not, on behalf of a customer:

            (1)      change, or direct another telephone company or reseller to change, the customer's telephone company or reseller;

            (2)      select a telecommunications service option for which the telephone company or reseller imposes a charge; or

            (3)      change the person who bills the customer or the customer's billing arrangement.