Article V
AIRCRAFT DESIGNATION
1. Each State Party shall have the right to designate as observation aircraft one or more types or models of aircraft registered by the relevant authorities of a State Party.
2. Each State Party shall have the right to designate types or models of aircraft as observation aircraft or add new types or models of aircraft to those designated earlier by it, provided that it notifies all other States Parties 30 days in advance thereof. The notification of the designation of aircraft of a type or model shall contain the information specified in Annex C to this Treaty.
3. Each State Party shall have the right to delete types or models of aircraft designated earlier by it, provided that it notifies all other States Parties 90 days in advance thereof.
4. Only one exemplar of a particular type and model of aircraft with an identical set of associated sensors shall be required to be offered for certification in accordance with the provisions of Annex D to this Treaty.
5. Each observation aircraft shall be capable of carrying the flight crew and the personnel specified in Article VI, Section III.