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

HB 187 establishes a state-level protocol for activating outdoor warning sirens during emergencies, requiring all Texas cities, counties, and emergency management agencies to adopt uniform standards. The bill mandates the Texas Division of Emergency Management to create a protocol with specific activation criteria (like National Weather Service warnings for tornadoes or flash floods) and guidance for integrating sirens with other alert systems. It also creates an advisory committee of emergency management professionals to help develop the protocol, while explicitly excluding oversight of siren testing, maintenance, or geographic coverage. Political subdivisions operating sirens must implement this protocol, which will be published online for public access.