Please see the message below that we have received from the European Commission concerning horses destined for Portugal from 1 January:

Regarding the sanitary certification of horses subject to intra-Union movement to Portugal, it is hereby advised that, from 1 January 2018 all registered or non-registered horses traveling to Portugal, regardless of the purpose and activity for which they are intended, must be accompanied by a health certificate issued through the TRACES System.

If you have any queries regarding this subject then please go to the DEFRA website