I?ve seen instances where a station engineer will duck tape a notice near the breakers that maintenance is being performed on the tower. Others are very responsible and their company requires them to lock off the plate breakers of the transmitters to ensure that there can be no chance that a tower climber can be exposed to dangerous levels of RF. And some, quite frankly, have no procedures that they follow. Sometimes the engineer will just turn off the transmitters and not even provide a tag-out. Even if there is a tag-out, that can provide a false sense of security. It would be interesting to see a station engineer post their lock-out, tag-out policy. OSHA and NIOSH have lots of publications, but they?re general in nature and don?t specifically target broadcasters. Also, I know that a lot of tower companies require their workers to wear a RFR meter, but I wonder if they have a policy and procedure in place that requires them to make sure that the broadcaster has met an acceptable level for protecting the climbers before they begin any installations or repairs.