NOTAMs which ______ are NOTAM Ds.

• A. are regulatory in nature
• B. require local and distant dissemination
• C. are distributed to more than one country
• D. originate with the U.S. armed forces

Answer: (B)

The key idea is how NOTAMs are spread. NOTAM Ds are the ones that must be shared beyond the local area, requiring both local and distant dissemination to other flight information regions worldwide. That broader distribution is what distinguishes them from other NOTAMs.

So, the correct choice is that NOTAMs which require local and distant dissemination are NOTAM Ds. The other statements describe properties that can apply to some NOTAMs but don’t define the global sharing requirement of NOTAM Ds. NOTAMs can be regulatory or informational, can originate from various authorities, and aren’t always distributed to multiple countries.