According to Seattle fire code 901.6, how often must smoke control systems be tested?

According to Seattle fire code 901.6, smoke control systems are required to be tested annually. This requirement is in place to ensure that these critical life safety systems remain functional and effective in the event of a fire, where they play a key role in managing smoke and facilitating safe evacuation. Regular annual testing helps to identify any potential issues that may compromise the system's operation and allows for timely maintenance or repairs. This testing frequency reflects the essential need for reliability in smoke control systems as part of overall fire safety measures in buildings.