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#1. The registration mark shall be letters, numbers, or a combination of letters and numbers and shall be that assigned by:
The registration mark for aircraft consists of letters, numbers, or a combination of both, and is assigned by the country where the aircraft is registered.
#2. The common mark shall be selected from the series of symbols included in the radio call signs allocated:
ICAO assigns a common mark (unique identifier) from a series of symbols allocated by the International Telecommunication Union (ITU).
#3. The assignment of the common mark to a common mark registration authority will be made by:
ICAO assigns the common mark for international operations, using symbols approved by ITU.
#4. When letters are used for the registration mark combinations, they shall not be used if they might be confused with urgent or distress signals, for example:
Combinations like XXX (urgency), RCC (Rescue Coordination Center), and other distress-related signals like SOS and PAN are prohibited to avoid confusion with emergency signals.
#5. When letters are used for the registration mark combinations, they shall not be used if they might be confused with:
Registration marks should not use distress signal codes (e.g., SOS, PAN) or internationally recognized codes (e.g., QNH, QRT) to prevent confusion during emergencies.
#6. The height of the marks on the fuselage (or equivalent structure) and on the vertical tail surfaces of heavier-than-air aircraft shall be:
Marks on the fuselage or vertical tail of heavier-than-air aircraft must be at least 30 cm tall for visibility and identification.
#7. The height of the marks on lighter-than-air aircraft, other than unmanned free balloons, shall be at least:
For lighter-than-air aircraft (e.g., hot air balloons), the marks need to be at least 60 cm high for proper identification.
#8. When letters are used for registration mark combinations, they shall not be used if they might be confused with urgent signals. Example 1
PAN (Urgency) and RCC (Rescue Coordination Center) are signals linked to emergency operations and should not be used as part of the aircraft registration mark.
#9. When letters are used for registration mark combinations, they shall not be used if they might be confused with urgent signals. Example 2
TTT (Safety/Securité) and RCC (Rescue Coordination Center) are reserved for emergency or safety communication and should not be part of the aircraft registration.
#10. The height of the marks under the wings of heavier-than-air aircraft shall be at least
Marks on the wings of heavier-than-air aircraft should be at least 50 cm tall to ensure clear identification from a distance.
#11. A certificate of registration is valid from the date of registration to
The aircraft’s registration remains valid as long as the aircraft is operational and in compliance with regulations, until the DGCA cancels it.
#12. Nationality marks allotted to India by ITU are
The ITU has allocated nationality marks for India, primarily VT for civil aircraft, and VU for Air Force aircraft.
#13. Nationality marks used in India are
In India, VT is used for civil aircraft, VU for military aircraft, and U for unmanned aircraft.
#14. Who exercises operational control over the leased aircraft?
The lessee exercises operational control over a leased aircraft
#15. A company undertaking to lease aircraft in India must be approved by
A company leasing aircraft in India must be approved by DGCA, which ensures the operator meets safety, regulatory, and operational standards before leasing activities begin.