PART 2 - HORSES - (E)2 to (E)26
17. Horses from outside Great Britain or Ireland: export certificates and passports
17.1 Where a horse is imported into Great Britain to be trained in Great Britain, the Export Certificate for the horse must be received at The Racing Calendar Office before the horse may be declared to run in any race under these Rules.
17.2 A horse which is trained outside Great Britain or Ireland may not run for a period exceeding 90 days on the production of its passport alone.
17.3 For the purposes of Paragraph 17.2, the period of 90 days commences with the date when the passport is endorsed by the Recognised Racing Authority where the horse is trained and is valid for one journey only.
17.4 The requirements of Paragraph 17.1 does not apply to horses imported from Ireland.