​Fire alarm systems, sprinkler systems, and extinguishers all need to be serviced annually. Sprinkler systems may also require a quarterly inspection and a 5 year service in addition to any annual service. Automatic non water based suppression systems with a fusible link need to be serviced every 6 months. All paperwork and service tags should be available at all times. Private hydrants (blue bonnets) need to be serviced annually. Fire doors with a fusible link need to be serviced annually.