Sec. 51.001.  ORDINANCE, RULE, OR REGULATION NECESSARY TO CARRY OUT OTHER POWERS.  The governing body of a municipality may adopt, publish, amend, or repeal an ordinance, rule, or police regulation that:
(1)  is for the good government, peace, or order of the municipality or for the trade and commerce of the municipality;  and
(2)  is necessary or proper for carrying out a power granted by law to the municipality or to an office or department of the municipality.
Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.