14 C.F.R. § 1203.302 Combination, interrelation or compilation.
Title 14 - Aeronautics and Space
An interrelationship of individual items, classified or unclassified, may result in a combined item requiring a higher classification than that of any of the individual items. Compilations of unclassified information are considered unclassified unless some additional significant factor is added in the process of compilation. For example: (a) The way unclassified information is compiled may be classified; (b) The fact that the information is complete for its intended purpose may be classified; or (c) The fact the compilation represents an official evaluation may be classified. In these cases, the compilations would be classified.
Title 14: Aeronautics and Space
PART 1203—INFORMATION SECURITY PROGRAM
Subpart C—Classification Principles and Considerations
§ 1203.302 Combination, interrelation or compilation.