Which is required for the Certificate of Registration to remain valid?

For the Certificate of Registration to remain valid, it is essential that the ownership and address associated with the registration remain unchanged. When an aircraft is registered, the registration is linked to a specific individual or entity, along with their address. If there are any changes to either the ownership or the registered address, the registration must be updated to reflect those changes. This is necessary to ensure that the registration accurately represents who is legally responsible for the aircraft and to maintain proper records for regulatory purposes. Keeping this information current helps to prevent issues related to ownership disputes and ensures that communication from aviation authorities reaches the correct party.

Regular operation of the aircraft, ownership by the pilot, and insurance, while important for various regulatory and operational reasons, do not directly affect the validity of the Certificate of Registration itself. The registration's integrity hinges on accurate ownership and address details, which must be maintained as stipulated by aviation regulations.