ALL APPROPRIATE STEPS TO INSURE THAT WORKERS, WHO CLIMB THIS TOWER WILL NOT BE EXPOSED TO LEVELS OF NON IONIZING RADIATION, WILL BE TAKEN. THESE STEPS INCLUDE A REDUCTION IN POWER OR CESSATION OF OPERATION, AS APPROPRIATE, WHEN WORK BECOMES NECESSARY ON THE TOWER IN THE AREA WHERE THE POWER DENSITY LEVELS ARE IN EXCESS OF THE PERMITTED LEVEL FOR CONTROLLED EXPOSURE.