The United States signed the STCW in 95 introduced for seafarers in 2002 and The USCG do not yet meet all the requirements of this organization. Examples as much as you want
Just a few
For example, we still don’t have seafarers Passports who allow all sailors who fly to change crew around the world - they do not need short visas
I flew to Japan and did not have a visa (replace the Chief Engineer of UANS in Okinawa) and almost missed the flight from Tokyo to Okinawa because I did not have a short visa.
What is the connection with the limitation of the engineers with the gross ton of the ship? 10000 ton ship can run on an engine from3000-4000 HP
DDE les then 4000HP – (3999 is ok) les then 500 GRT- (499is ok) Ha Ha ???