entirely voluntary 
and does not imply a commitment by any Agency or organization to implement its 
recommendations in a prescriptive sense.  
No later than five years from its date of issuance, this Recommended Practice will be 
reviewed by the CCSDS to determine whether it should: (1) remain in effect without change; 
(2) be changed to reflect the impact of new technologies, new requirements, or new 
directions; or (3) be retired or canceled.  
In those instances when a new version of a Recommended Practi