What publication extends or adds materials to publications issued by higher headquarters or agencies?

• A. Circulars
• B. Supplements
• C. Notices
• D. Guidelines

Answer: (B)

The correct answer is “supplements” because they serve the specific purpose of extending or adding materials to existing publications from higher headquarters or agencies. Supplements are designed to provide additional information, clarify existing directives, or introduce new guidance that complements the original documents. They are integral in ensuring updates and changes are systematically incorporated into official resources without the need to reissue entire publications.

In contrast, circulars are generally used for disseminating information broadly and may not specifically add material to existing documents. Notices are often administrative communications typically intended for short-term announcements or alerts. Guidelines provide overarching principles or recommendations but do not directly enhance or amend previous publications in the way supplements do.