Horse and Hound this week gives details of horse passports in other countries.
Germany has just caught its first horse passport forgery!
German horses with passports are those which move around for competition/sale, ordinary horses and ponies do not have them.
Again in France only registered/competition horses have passports although all horses are said to require papers.
In Holland again non-competition horses/non-registered do not have passports
In Greece only competition horses have passports.
In Ireland a system is not yet in place
Those countries which have legislation have no penalties for non-compliance but the UK has written in swinging penalties for an owner without a passport, up to £5000 for 1-10 horses, up to £1000 per horse for more than 10 horses. The latter category would include riding schools some are still saying they will not buy them