100. The closing date for nominations and payment of nomination fees for a special race is:(1) for a stake race for yearlings, on 15 May and, for other horses, on the 15th day of a month;
(2) for a futurity race, on 15 July of the year of birth of the horse;
(3) for an early closing race, on the 1st or 15th day of a month, subject to the fact that a 2 year old horse may not be nominated before 15 February;
(4) for a late closing race, on the 1st or 15th day of a month.