A chicken hatchery with a National Poultry Improvement Plan certification has been tested and found to be clean of salmonella, mycoplasma and low-path avian influenza diseases at a basic level. NPIP-certified hatcheries are essential to large-scale poultry farming and the backyard flock alike.
Source: Backyard Poultry, March 2019. Link. Farms and hatcheries that volunteer to participate in the NPIP program also must follow standard sanitation, testing and facility guidelines which have been established to ensure that birds stay healthy. The NPIP also offers additional testing and certification to flocks who want to verify that their birds are clean of other specific diseases.