The Parks Companies ask all livestock producers who sell their livestock at a Parks Companies marketing facility to have their animals properly ear tagged. This requirement is in effect due to mandatory ear tagging requirements in the US and Canadian traceability requirements. Canadian livestock ear tagging is mandatory effective July 1, 2014 as per Candian legislation. Furthermore, many US packing plants will not accept breeding stock without USDA approved ear tags and documentation after January 1, 2015. More information on ear tagging is available at www.pork.org/PINtag and www.pigtrace.ca .