Yes, because aircraft are on GSA's exchange/sale prohibited list (see  part 102-39 of this subchapter B), you may not exchange or sell aircraft unless you obtain approval from GSA to deviate from  part 102-39 of this subchapter B (see  § 102-33.10 on how to request a deviation). In your letter of request to GSA, you must include the full details of your situation and the proposed transaction and certify that—
     
    
        
        (a) 
         Your agency's mission is dependent upon receiving a replacement aircraft;
     
    
        
        (b) 
         You will be replacing the aircraft with similar-type property (see  § 102-39.15 of this subchapter B for a definition of “similar”);
     
    
        
        (c) 
         Your replacement will be on a one-for-one basis (you must request and justify a waiver from GSA, Aircraft Management Policy Division (MTA), 1800 F Street, NW., Washington, DC 20405, to deviate from the one-for-one rule); and
     
    
        
        (d) 
         The exchange or sale meets all other requirements in  part 102-39 of this subchapter B.
 
     
    
        
            Code of Federal Regulations
        
        
            Note to § 102-33.275
                :
            The requirement to get GSA's approval for an exchange/sale does not apply if a Federal statute specifically authorizes your agency to exchange or sell certain aircraft.