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: Errata Sheet for AC 150/5220-20A, Airport Snow and Ice Control Equipment January 2015 Addendum to AC 150/5345-53D, Airport Lighting Certification Program and Addendum |