Tex. Utilities Code § 53.061: ALLOWANCE OF CERTAIN EXPENSES.

(a) The commission may not allow as a cost or expense for ratemaking purposes:

(1) an expenditure for legislative advocacy; or

(2) an expenditure described by Section 52.254 that the commission determines to be not in the public interest.

(b) The commission may allow as a cost or expense reasonable charitable or civic contributions not to exceed the amount approved by the commission.

Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.