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604.7 Testing of Battery Powered Emergency Lights and Exit Signs
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Required emergency lighting utilizing battery powered emergency lights or exit signs, or both, shall be tested annually. The emergency lights and exit signs shall be tested for proper operation for the time period established in the building code in effect when the equipment was installed. Written records of tests shall be retained by the owner of the building for a minimum of 2 years after the test is conducted and shall be made available to the fire code official upon request.