bugs do not know, care about state lines. do not transport firewood with bark on.
its simple. Infestive bugs live in the cambium. If you wish to bring your own wood, pick out split pieces without any bark.
Bug infesestations are not only due to wood, also as unintentional 'hitchhikers' in trailers.
Gypsy moths are a prime example. The USFS places traps for them in the west in thousands of places, invariably gypsy moths are trapped near camps, nowhere else......
infected campfire wood , Hichhiking in a trailer is the only attributable reason for that .
Do not move suspect wood.