(a) Unless the commission issues a certificate that the present and future convenience and necessity will not be adversely affected, a certificate holder may not discontinue, reduce, or impair service to any part of the holder's certificated service area except for:
(1) nonpayment of charges;
(2) nonuse; or
(3) another similar reason that occurs in the usual course of business.
(b) A discontinuance, reduction, or impairment of service must be in compliance with and subject to any condition or restriction the commission prescribes.
Official text of the Texas Utilities Code as published by the Texas Legislative Council.