Yes.. it's required. Like elevators need a third party inspection and certification every 3 months.
my office got a $250 fine recently Fire Marshals came for surprise inspection. The exit sign are battery powered. The bulb was lit during charge but once the power was off. The bulb didn't light. There was some issue with the battery. The sign itself is cost $80. Then one time the fire extinguisher wasn't inspected. Got a 250 fine for that too.
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