Specifications include, but are not limited to: Many historic structures are extremely vulnerable to fire due to their design, building materials and components. Without automatic fire protection, furnished historic structures and their contents are at serious risk of damage or total destruction from fire. Many furnished historic structures and the collections on exhibit in these structures are mission critical. To protect collections and the historic structure, service provider will maintain an automatic fire detection and alarm system (there is no sprinkler or fire suppression system in the historic structures). Automatic alarms and alarm communications need to accurately signal the presence and location of a fire to a UL listed and/or regionally-approved receiving and monitoring station or central station that is monitored 24/7. All museums shall have intrusion detection and signaling systems. These systems shall be monitored 24 hours per day, 7 days per week. Alarm annunciation shall be both audible and visual. There shall be an annunciation on the local premises and a back-up annunciation at a commercial monitoring station, or, where jurisdiction permits, at the police or emergency dispatch station. There are no programmable access controls systems, digital keypads, or cards or biometric readers at the museum. The method of electronic communications between the premises alarm system and the remote monitoring facility shall comply with Underwriters Laboratories Standard 827, Remote Monitoring Station Alarm Service, and meet the equipment listing requirements for at least the "Standard Line Security" level of protection service against compromise.