Relating to the development and implementation of outdoor warning siren activation protocol, including the establishment of an advisory committee.

HB 156 requires Texas counties, cities, and other local governments operating outdoor warning sirens to adopt a standardized statewide activation protocol. The protocol establishes uniform criteria for activating sirens during emergencies like tornado warnings, flash floods, or local disaster declarations, while specifying that it does not cover siren testing, maintenance, or coverage requirements. It mandates the state division to develop this protocol and create an advisory committee of emergency management experts to guide its implementation. Local governments must implement the protocol, which will be published online for public access.