In Minnesota, it is mandatory for all licensed hunters (big game only) to register their game.  Hunters that registered their deer within the bTB Surveillance Area were asked to voluntarily submit cranial lymph node samples for bTB testing at designated registration stations.  Only deer >1.0 year old were included in sampling efforts.  Hunter information was recorded, including the hunter's name, address, telephone number, MNDNR number, and location of kill.  Maps were provided to assist the hunters in identifying the location (Township, Range, Section, and Quarter-section) of the kill.  Cooperating hunters were offered incentives, including a cooperator's patch and raffles for firearms donated by local and statewide sporting groups.