3 Pa. C.S. § 2106
The department through the inspectors shall at least twice during each summer season, inspect all queen apiaries. If from the inspection it appears that any bee disease exists in the queen apiary, the apiary inspector making the inspection shall immediately notify in writing the owner or person in charge thereof, and thereafter it shall be unlawful for that person to ship, sell or give away any queen bees from the apiary until the disease has been destroyed and a certificate of that fact has been obtained from the chief inspector. If upon inspection it is found that no bee disease exists in the queen apiary, the chief inspector shall issue a certificate of that fact and a copy of the certificate shall be attached to each package or shipment of queen bees transported from the apiary. The certificate shall be valid for one year from the date of its issue unless revoked for cause.
3 Pa.C.S. § 2106