CAAP MEMORANDUM CIRCULAR NO. 27-14, September 16, 2014
AMENDMENT TO PHILIPPINE CIVIL AVIATION REGULATIONS – AIR NAVIGATION SERVICES (CAR-ANS) PART 5 INCORPORATING AMENDMENT 57 TO ICAO ANNEX 4
National Administrative Register September 16, 2014
Text Available at the Office of the National Administrative Register, U.P. Law Complex, Diliman, Quezon City
Adopted: 16 September 2014