Welcome to the forum. You might do a search when looking for information like this, as there are a few extensive threads on this topic, as well as almost any other topic related to guns.
The is a very extensive knowledgebase on NES, and because of that, some folks get a bit grumpy when you start a new thread instead of searching for the info.
NH Non-resident permits
Read the stickies, look around, and again, welcome!