(a) Initial and subsequent status. When a herd is first enrolled in the CWD Herd Certification Program, it will be placed in First Year status; except that, if the herd is composed solely of animals obtained from herds already enrolled in the Program, the newly enrolled herd will have the same status as the lowest status of any herd that provided animals for the new herd. If the herd continues to meet the requirements of the CWD Herd Certification Program, each year, on the anniversary of the enrollment date the herd status will be upgraded by 1 year; i.e., Second Year status, Third Year status, Fourth Year status, and Fifth Year status. One year from the date a herd is placed in Fifth Year status, the herd status will be changed to Certified, and the herd will remain in Certified status as long as it is enrolled in the program, provided its status is not lost or suspended in accordance with this section.

(b) Loss or suspension of herd status. (1) If a herd is designated a CWD-positive herd or a CWD-exposed herd, it will immediately lose its program status and may only reenroll after entering into a herd plan.

(2) If a herd is designated a CWD-suspect herd, a trace back herd, or a trace forward herd, it will immediately be placed in Suspended status pending an epidemiologic investigation by APHIS or a State animal health agency. If the epidemiologic investigation determines that the herd was not commingled with a CWD-positive animal, the herd will be reinstated to its former program status, and the time spent in Suspended status will count toward its promotion to the next herd status level.

(i) If the epidemiologic investigation determines that the herd was commingled with a CWD-positive animal, the herd will lose its program status and will be designated a CWD-exposed herd.

(ii) If the epidemiological investigation is unable to make a determination regarding the exposure of the herd, because the necessary animal or animals are no longer available for testing (i.e., a trace animal from a known positive herd died and was not tested) or for other reasons, the herd status will continue as Suspended unless and until a herd plan is developed for the herd. If a herd plan is developed and implemented, the herd will be reinstated to its former program status, and the time spent in Suspended status will count toward its promotion to the next herd status level; Except that, if the epidemiological investigation finds that the owner of the herd has not fully complied with program requirements for animal identification, animal testing, and recordkeeping, the herd will be reinstated into the CWD Herd Certification Program at the First Year status level, with a new enrollment date set at the date the herd entered into Suspended status. Any herd reinstated after being placed in Suspended status must then comply with the requirements of the herd plan as well as the requirements of the CWD Herd Certification Program. The herd plan will require testing of all animals that die in the herd for any reason, regardless of the age of the animal, may require movement restrictions for animals in the herd based on epidemiologic evidence regarding the risk posed by the animals in question, and may include other requirements found necessary to control the risk of spreading CWD.

(3) If an APHIS or State representative determines that animals from a herd enrolled in the program have commingled with animals from a herd with a lower program status, the herd with the higher program status will be reduced to the status of the herd with which its animals commingled.

(c) Cancellation of enrollment by Administrator. The Administrator may cancel the enrollment of an enrolled herd by giving written notice to the herd owner. In the event of such cancellation, any herd enrolled in the CWD Herd Certification Program by that herd owner may not reach Certified status until 5 years after the herd owner's new application for enrollment is approved by APHIS, regardless of the status of the animals of which the herd is composed. The Administrator may cancel enrollment after determining that the herd owner failed to comply with any requirements of this subpart. Before enrollment is canceled, an APHIS representative will inform the herd owner of the reasons for the proposed cancellation.

(1) Herd owners may appeal designation of an animal as CWD-positive, cancellation of enrollment of a herd, or loss or suspension of herd status by writing to the Administrator within 10 days after being informed of the reasons for the action. The appeal must include all of the facts and reasons upon which the herd owner relies to show that the reasons for the action are incorrect or do not support the action. Specifically, to appeal designation of an animal as CWD-positive, the owner may present as evidence the results of a DNA test requested and paid for by the owner to determine whether previous official CWD test results were correctly associated with an animal that belonged to the owner. If the owner intends to present such test results as evidence, he or she shall request the tests and state this in the written notice sent to the Administrator. In such cases the Administrator may postpone a decision on the appeal for a reasonable period pending receipt of such test results. To this end, laboratories approved under § 55.8 are authorized to conduct DNA tests to compare tissue samples tested for CWD to samples from tissues that were collected at the same time from the same animal and are attached to an official identification device. Such DNA tests are available only if the animal owner arranged to submit animal tissue attached to an official identification device along with the other tissues that were collected for the official CWD test. The Administrator will grant or deny the appeal in writing as promptly as circumstances permit, stating the reason for his or her decision. If the Administrator grants an appeal of the status of a CWD-positive animal, the animal shall be redesignated as CWD-suspect pending further investigation to establish the final status of the animal and its herd. If there is a conflict as to any material fact, a hearing will be held to resolve the conflict. Rules of practice concerning the hearing will be adopted by the Administrator.

(2) [Reserved]

(d) Herd status of animals added to herds. A herd may add animals from herds with the same or a higher herd status in the CWD Herd Certification Program with no negative impact on the certification status of the receiving herd. 5 If animals are acquired from a herd with a lower herd status, the receiving herd reverts to the program status of the sending herd. If a herd participating in the CWD Herd Certification Program acquires animals from a nonparticipating herd, the receiving herd reverts to First Year status with a new enrollment date of the date of acquisition of the animal.