4 Star: 
Maximum pulse 64 bpm within 30 minutes
 3 Star: 
Maximum pulse 64 bpm within 30 minutes
 2 Star: 
Maximum pulse 64 bpm within 20 minutes
 1 Star: 
Maximum pulse 56 bpm within 20 minutes recovery with a vet gate after each 25 
kms (minimum) - 30 km ( maximum)
 The pulse 
criteria may be reduced during the ride if in the opinion of the Vet Commission 
in consultation with the President of the Ground Jury and the TD believe there 
is a danger to the welfare of the horses in the 
event.
 
 Article 
828      
Declaration of Starters
1.      The 
Chefs d'Equipe must declare in writing to the Secretariat of the Organisers the 
names of the competitors and of the horses allocated to the competitors 
definitively starting, chosen from those regularly entered on the official entry 
forms.
2.      
Declaration of starters by the Chef d'Equipe or his/her 
representative will take place within one hour after the first inspection of the 
horses.
3.      
Substitutions:
3.1.   Substitutions after Definite 
Entries: After the Definite Entries have been sent in, substitution of 
horses and/or competitors from the list of Nominated Entries (if any) may only 
be made with the written permission of the NF and the OC. 
3.2.   Substitutions in case of 
accident or illness: in case of an accident or illness of a competitor or a 
horse, which occurs between the declaration of starters and the start of the 
competition; substitutions can be made up to 3 hours before the start of 
the competition. The following conditions must be met; 1) a certificate of the 
condition from an officially recognised physician for the rider, and from a 
veterinary surgeon for the horse, and  
2) permission of the President of the Ground Jury.  
A competitor or 
horse or both may be replaced by another competitor or horse or by 
competitor/horse combination taken from 
those who have been duly entered as members of teams or as individuals and whose 
horses have successfully passed the First Horse Inspection. 
3.3.   At Championships horses can only be 
substituted by the rider's NF with horses, which figure on the rider's NF's 
Nominated Entries list.