NOTACK is a status used in submarine operations to indicate what?

• A. Submarine Safety Lane
• B. A 2-hour duration
• C. No Attack
• D. A 10 NM radius

Answer: (C)

NOTACK means No Attack — it’s a deconfliction status used to prevent engagement of a submarine. When this status is active, friendly forces are instructed not to initiate or continue weapons engagements against that submarine or contact, allowing safe movement, communication, or special operations without the threat of being fired upon.

This is distinct from a Submarine Safety Lane, which would designate a protected corridor for safe passage, or from fixed time or distance constraints like a set duration or a radius. Those other options aren’t what NOTACK conveys; NOTACK is about engagement policy, not a specific time window or geographic boundary.