Scope and Responsibility
- Effective from the Order's effectivity date, all airlines are mandated to generate their own registry numbers following the established scheme.
- Airlines must use a standardized alphanumeric format with a three-letter airline prefix and a four-digit numeric sequence.
Numbering Convention
- Registry number format: Three alphabetic characters (Airline Prefix Code) + four numeric characters.
- Alphabetic characters correspond to airline-specific prefix codes listed in Annex A.
- Airlines using only two-letter IATA codes must append "A" as a third letter until new codes are issued by IATA.
- Numeric characters represent the sequential number of aircraft arrivals in a calendar year, starting from 0001.
- For example:
- Cathay Pacific Airways: CXA0001, CXA0002, CXA0003...
- Philippine Airlines: PRA0001, PRA0002, PRA0003...
- Special or unscheduled flights use the same prefix but numeric sequence starts at 9000 and increments (e.g., PRA9001 for first special flight).
Operational Guidelines
- Numeric sequencing resets annually on January 1.
- Airlines must pre-generate registry numbers two weeks before each quarter for all scheduled flights.
- The pre-generated list must be submitted promptly to the Aircraft Operations Division (AOD) and Data Monitoring Division (DMD).
- These pre-assigned registry numbers are final; no modifications or reassignments are allowed. Flight cancellations should be duly reported.
- Registry numbers for special/unscheduled flights shall be generated and submitted upon confirmation of Estimated Time of Arrival (ETA).
- AOD is tasked with:
- Preparing daily flight arrival reports including flight and registry numbers.
- Generating registry numbers for airlines not listed in Annex A using the prefix "AOD".
- Registry numbers must be visibly indicated on all pertinent documents submitted to the Bureau.
Administrative and Legal Provisions
- This Order revokes, amends, or supersedes any existing Orders or issuances that conflict with its provisions regarding coding and numbering schemes.
- The Order becomes effective on July 1, 1995, and remains in force until revoked.
Annex A: Airline Prefix Codes
- Provides a comprehensive list of airlines alongside their designated three-letter prefix codes used in the registry numbers.
- Airlines not included in the list are assigned the prefix "AOD" by the Aircraft Operations Division.
This detailed scheme ensures uniformity, traceability, and control over aircraft registry numbering related to customs processing and aviation monitoring within the Philippine jurisdiction.