You are compiling information from multiple sources. In addition to applying the standard markings, is there any information specific to compilation that need to be applied?

Yes, include an explanation for the basis of compiled classification

Explanation:

In marking of classified information, the basis of classification is needed to be explained to justify the classification. This is very important in making sure that the information is easy to understand by whosoever is the reader. Marking gives the information holder details on what protection requirement the information holds.