(a) To carry out the public policy stated in Section 52.001, notwithstanding any other provision of this title, the commission may adopt rules and establish procedures applicable to incumbent local exchange companies to:
(1) determine the level of competition in a specific telecommunications market or submarket; and
(2) provide appropriate regulatory treatment to allow an incumbent local exchange company to respond to significant competitive challenges.
(b) This section does not change the burden of proof on an incumbent local exchange company under Sections 53.003, 53.006, 53.051, 53.052, 53.053, 53.054, 53.055, 53.057, 53.058, 53.060, and 53.062.