What type of directive is typically cancelled after 12 months?

The correct choice is Notice, as Notices are designed to provide temporary information or guidance within the Coast Guard. Typically, Notices are intended for short-term use and are often reviewed and assessed for relevance or necessity after a period of 12 months. If they are no longer applicable or needed, they are cancelled.

This time-limited aspect of Notices helps ensure that the information circulating within the organization remains current and relevant, while other types of directives, such as Circulars or Instructions, have different purposes and longevity. Circulars may provide guidance or policy from the commandant or might address administrative matters but do not have the same set duration for cancellation. Instructions outline official procedures and policies and are often more permanent unless superseded or specifically cancelled. Announcements can be variable and do not follow a set timeframe for cancellation, depending on the nature of the announcement.