Here in Maine, we’ve had Open Carry for a long time, no permit necessary.
Starting this month here in Maine, we have Constitutional Carry.
It’s legal to carry a concealed firearm on your person or in your vehicle, no permit needed.
If you get pulled over by a police officer, you’re supposed to tell the officer / deputy / state trooper that you have a firearm in your vehicle.
I don’t know why we can’t have a weapon anywhere we go, across state borders or where ever....