What should you do to confirm that a block-based location is understood by all units?

• A. Solicit acknowledgment from all units.
• B. Assume they understood after you speak.
• C. Only inform the lead unit and rely on them.
• D. Use coded language without confirmation.

Answer: (A)

When communicating a block-based location, the main idea is to get explicit acknowledgment from every unit involved. Saying the location aloud isn’t enough on its own—each unit must confirm they heard and understand it. This keeps all responders oriented and reduces the chance of misinterpreting the block reference, especially with radios cluttered by noise or overlapping traffic.

After you state the location, pause and request a clear confirmation from each unit, such as a quick copy or understood reply. If any unit doesn’t respond, re-state the location and verify until all units acknowledge. Relying on the lead unit or assuming comprehension after you speak can leave others uncertain, and using coded language without confirmation can lead to delays or mistakes.