NPIP does NOT mean the breeder's flock is disease-free, only Pullorum and Typhoid free, and sometimes Avian Influenza-free, depending on the particular state. That was created for the protection of the food supply, not for backyard flock owners. They could still be carriers of many of the most common diseases, like CRD/Mycoplasmosis, Coryza, etc. If I could just get people to see that NPIP is not what they think it is, I'd be very satisfied. Quarantine needs to be observed for all started birds you purchase from anyone, no matter how much you trust them. I never buy started birds at all. The stress isn't worth it.