There's wood that goes back and forth between New Brunswick and the state of Maine on a regular basis. I'm talking round trees, lumber, etc., and it's been tradition. If you look in the history books, you will find the Webster-Ashburton Treaty back in the 1800s that permitted the free access of wood between New Brunswick and the state of Maine, and it's still there.
On April 12th, 2016. See this statement in context.