The U.S. National Animal Identification System (NAIS) & the U.S. Beef-Cattle Sector: A Post-Mortem...
Factsheet
Official APHIS Factsheet to Veterinary Services 2-5-10 Q & A http://www.aphis.usda.gov/publications/animal_health/content/printable_version/faq_traceability.pdf There are 7...
