GRT/NRT has been replaced by GT/NT in all international trade since 1982

Sorry, just curious.
It still got to do with the GRT/GT dilemma, though. I presume domestic trade boat sometime have to be moved from east to west via the Panama Canal, or v.v.
What about for boats using the inside passage to/from Alaska?

Is this is a problem that anybody here have experienced, or is there a simple “work around” for this as well?

PS> This was in reply to this post;