Sec. 772.311.  PRIMARY EMERGENCY TELEPHONE NUMBER.  The digits 9-1-1 are the primary emergency telephone number in a district.  A public safety agency whose services are available through a 9-1-1 system may maintain a separate number or numbers for emergencies and shall maintain a separate number or numbers for nonemergency telephone calls.
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.