Sec. 9.007.  CERTIFICATION OF CHARTER OR AMENDMENT.  (a)  As soon as practicable after a municipality adopts a charter or charter amendment, the mayor or chief executive officer of the municipality shall certify to the secretary of state an authenticated copy of the charter or amendment under the municipality's seal showing the approval by the voters of the municipality.
(b)  The secretary of state shall file and record the certification in his office in a book kept for that purpose.
Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987.