The union of the ruleset of the flag country, the source country, and the destination country seems pretty reasonable - you should have to follow all three. Obv

The union of the ruleset of the flag country, the source country, and the destination country seems pretty reasonable - you should have to follow all three. Obviously not how it’s currently done, it’s an industry that has been doing it by flagging out of places like Liberia or Mauritania since time immemorial, but we can clearly do better. If this causes conflicts that make certain flags legally incompatible with certain combinations of sources and destinations - good. Those flags-of-convenience can harmonize their rules to the rest of the world. The environment and human rights will benefit.