[Answer] What changes must be made to the classification authority block when declassifying a document?

Answer: The only changes in the Classification Authority Block are the addition of the name of the OCA responsible for the declassification and the date of declassification.

Most relevant text from all around the web:

What changes must be made to the classification authority block when declassifying a document? What changes must be made to the classification authority block when declassifying a document? The only changes in the Classification Authority Block are the addition of the name of the OCA responsible for the declassification and the date of declassification. If a Letter of Transmittal does not contain classified information then no no portion markings or Classification Authority Block are required . Tue Sep 13 2016 · To exempt records from automatic declassification agencies must have the specific authority to extend the duration of classification beyond 25 years in the form of a File Series Exemption and/or an Interagency Security Classification Appeals Panel (ISCAP) approved declassification guide. Declassification Frequently Asked Questions Marking Classified Documents Declassification Frequently Asked Questions The only changes in the Classification Authority Block are the addition of the name of the OCA responsible for the declassification and the date of declassification. If a Letter of Transmittal does not contain classified information then no no portion markings or Classification Authority Block are required . If using a single source document the declassification date is carried over to the newly created document. If using a classification guide use the date that is annotated in the guide. If using multiple sources the date or event for declassification that corresponds to the lon...

Disclaimer: 

Our tool is still learning and trying its best to find the correct answer to your question. Now its your turn, "The more we share The more we have". Comment any other details to improve the description, we will update answer while you visit us next time...Kindly check our comments section, Sometimes our tool may wrong but not our users.

Are We Wrong To Think We're Right? Then Give Right Answer Below As Comment