Police dogs; police agencies; heat alarm system; effective date.

HB 4355 requires all Oklahoma police departments, county sheriff's offices, and university campus police to equip vehicles used in canine law enforcement programs with heat alarm systems. The systems must activate automatically when a vehicle stops running or interior temperatures exceed 85°F, triggering an audible alarm, lowering rear windows, and notifying officers of dangerous conditions. This law applies to all vehicles in canine programs and takes effect on November 1, 2026. The bill directly affects law enforcement agencies managing police dog units by mandating specific safety features in their vehicles.