We recently added the following documents to the New and Revised Airports Advisory Circulars page on the FAA website:
Quarter 4 FY 2020 Addendum for AC 150/5230-4B, Aircraft Fuel Storage, Handling, Training, and Dispensing on Airports
Quarter 4 FY 2020 Addendum for AC 150/5210-17C, Programs for Training of Aircraft Rescue and Firefighting Personnel
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