How often must alarm notification appliances be tested?

Alarm notification appliances must be tested annually to ensure that they are functioning correctly and effectively. This frequency aligns with best practices in fire safety and building code requirements, which mandate regular testing to verify that the systems can reliably alert occupants in case of an emergency. An annual test helps to identify any maintenance issues, ensures compliance with relevant standards, and contributes to the overall safety of the building and its occupants. By conducting these tests on a yearly basis, technicians can confirm that the appliances will operate as expected when they are needed most.