[Code of Federal Regulations] [Title 9, Volume 1] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 9CFR81.2] [Page 336] TITLE 9--ANIMALS AND ANIMAL PRODUCTS CHAPTER I--ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE PART 81_CHRONIC WASTING DISEASE IN DEER, ELK, AND MOOSE --Table of Contents Sec. 81.2 Identification of deer, elk, and moose in interstate commerce. Each animal required to be identified by this subpart must have at least two forms of animal identification attached to the animal. The means of animal identification must be approved for this use by APHIS, and must be an electronic implant, flank tattoo, ear tattoo, tamper- resistant ear tag, or other device approved by APHIS. One of the animal identifications must be an official animal identification as defined in this part, with a nationally unique animal identification number that is linked to that animal in the CWD National Database. The second animal identification must be unique for the individual animal within the herd and also must be linked to that animal and herd in the CWD National Database. (Approved by the Office of Management and Budget under control number 0579-0237)