The info is from the state vets office, I just got NPIP certified so we went over everything. If anyone wants there contact I can give it.
The bigger swaps do require it, actually both. I think the small swaps either don't realize or they don't want to deal with it and unfortunately the vet can't really do anything if they were to find out, just a slap in the wrist.
If you go to bid swaps sometimes there will be a certified NPIP tester outside testing and AI is tested by the vets office for free so there's really no reason not to have that done.