T1C06:Which of the following statements is true about using your amateur radio license when operating aboard a vessel or craft in international waters?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T1C06 is You may operate from a US-documented vessel with the master's permission.
The key fact is You may operate from a US-documented vessel with the master's permission. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.