MT HB651

Authorizes temporary door locking devices in public buildings during shelter-in-place or emergency lockdown situations, creating an exception to Montana fire code restrictions on obstructing fire exits

Requires approval from local fire department, law enforcement, or code official for devices used on fire exits, hallways, or corridors

Defines qualifying devices as those that can be engaged/removed without opening the door, installed no higher than 48 inches, removable with a single operation, and compliant with NFPA fire rating standards

Mandates integration of temporary locking devices into building safety plans, drills, and training programs for staff and first responders

Effective immediately upon passage and approval