Each horse must have a name which is not an exact duplicate of the name of any other horse. Farm prefixes or suffixes are encouraged. No name may exceed twenty-five (25) characters including spaces, numerals and suffixes. The use of Numeral suffixes, both Arabic and Roman, is reserved exclusively for assignment by the Registry to distinguish duplication and/or where the horse has a foreign registry name with a numeral suffix. The only exception to this is the use of a horse’s year of birth as a suffix written in standard form, i.e. 2003.