Every equine bred or existing in the European Union has to be properly identified - Regulamento (CE) 504/2008 de 6 de Junho.

Deadlines for identification: until 31 of December of the year of birth of the equine or within 6 months from the date of birth of the equine.

Unique and lifetime identification document in Portugal: with blue covers for registered equine and green for the others.

Microchipping: its placement is mandatory.