Livestock Tagging

The Livestock Unique Identification Service (LUIS) was developed in collaboration with Ear Tag Manufacturers to connect Ear Tag suppliers to the Livestock Industry. Livestock needs to be officially identified by a unique number showing; country of origin, flock and/or herd mark and location (holding number). This information is required by law and is vital to enable government and industry to react quickly and effectively in the event of a livestock disease outbreak.

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Information about
LUIS and users

LUIS replaced the existing Sheep and Goat Ear Tag Allocation System (S&GETAS) from March 2022 and the Cattle Ear Tag Allocation Systems (CETAS) from Feb 2023.


The LUIS service is now being used by ear tag manufacturers and suppliers to order unique tag numbers initially for sheep, goats, and cattle.


LUIS is only for use by approved tag manufacturers and suppliers. You can find out more about becoming an approved tag supplier or manufacturer by clicking the link.


If you are a government user who wants access to LUIS reports, contact the LUIS support team by emailing