Community QuestionSeen on 12 CBTs

Which of the following is an authorized source for derivative classification?

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.
Answer

Security Classification Guide (SCG) A properly marked classified source document DD Form 254

Alternate answers seen on other CBTs

The same question shows up worded slightly differently across CBT versions. Here are the other answer variants we've indexed.

Security Classification Guide (SCG)

Derivative Classification Steps