We recently added the following AC(s) to the New and Revised Airports Advisory Circulars page (www.faa.gov/airports/resources/recent_advisory_circulars/) on the FAA website:
AC 150/5340-26B, Maintenance of Airport Visual Aid Facilities
AC 150/5380-8A, Handbook for Identification of Alkali-Silica Reactivity in Airfield Pavements
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