According to the announcement issued by the USDA Animal and Plant Health Inspection Service (APHIS), Canada has started to require the United States to import breeding cattle to upgrade their identity. As of February 1, 2018, the right ear of each animal will require the wearing of an RFID tag and a U.S.-flagged tattoo. USDA said metal labels no longer apply from now on.
According to APHIS, U.S. regulations require that animals possessing an official ID must be labeled. Exporters and veterinarians can visit the IREGS website for further information. APHIS said that in response to these requests, the Canadian Food Inspection Agency (CFIA) has started issuing import licenses. These agreements and certificates can be updated on the IREGS website.
In 2010, Canada began to require the use of RFID tags in herds. Before this, when American bovine cattle were imported into Canada, they had to be re-tagged with RFID tags on arrival. This change will reduce inspection time at Canadian Customs.