Hey y'all. Getting NPIP certified is completely free. The state would prefer all backyard flocks being certified so they can keep records on your birds in order to keep all birds safe. This is good because they bend over backward in order to help you (at least they do here in WV) We only have one field agent and he's from the southern part of the state. I dealt with him on his cell. We made an appt. and he traveled all the way here to do my 12 birds. He then compiled his paperwork and sent me mine in a couple weeks. They will come once a year, I believe and randomly check birds but they will call first. I cleaned out all my coops too just because I thought I was going to be investigated but it wasn't like that at all. Good Luck and it is a great idea if you're planning on selling eggs or birds or showing.