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the sale of the aircraft by the manufacturer or a dealer. The dealer must remove the certificate when the aircraft is sold. 

Upon complying with 14 CFR part 47, section 47.31, the pink copy of the application for an Aircraft Registration Application, Aeronautical Center (AC) Form 8050-1, provides authorization to operate an unregistered aircraft for a period not to exceed 90 days. Since the aircraft is unregistered, it cannot be operated outside of the United States until a permanent Certificate of Aircraft Registration is received and placed in the aircraft. 

The FAA does not issue any certificate of ownership or endorse any information with respect to ownership on a Certificate of Aircraft Registration. 

NOTE: For additional information concerning the Aircraft Registration Application or the Aircraft Bill of Sale, contact the nearest FAA Flight Standards District Office (FSDO). 

## Airworthiness Certificate 

An Airworthiness Certificate is issued by a representative of the FAA after the aircraft has been inspected, is found to meet the requirements of 14 CFR part 21, and is in condition for safe operation. The Airworthiness Certificate must be displayed in the aircraft so it is legible to the passengers and crew whenever it is operated. The Airworthiness Certificate must remain with the aircraft unless it is sold to a foreign purchaser. 

A Standard Airworthiness Certificate is issued for aircraft type certificated in the normal, utility, acrobatic, commuter, transport categories, and manned free balloons. Figure 9-9 illustrates a Standard Airworthiness Certificate, and an explanation of each item in the certificate follows. 

1. Nationality and Registration Marks.  The “N” indicates the aircraft is registered in the United States. Registration marks consist of a series of up to five numbers or numbers and letters. In this case, N2631A is the registration number assigned to this aircraft. 

2. Manufacturer and Model . Indicates the manufacturer, make, and model of the aircraft. 

3. Aircraft Serial Number . Indicates the manufacturer’s serial number assigned to the aircraft, as noted on the aircraft data plate. 

4. Category . Indicates the category in which the aircraft must be operated. In this case, it must be operated in accordance with the limitations specified for the “NORMAL” category. 

5. Authority and Basis for Issuance . Indicates the aircraft conforms to its type certificate and is considered in condition for safe operation at the time of inspection and issuance of the certificate. Any exemptions from the applicable airworthiness standards are briefly noted here and the exemption number given. The word “NONE” is entered if no exemption exists. 

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