038-5 Wyo. Code R. § 5-3
(a) The Clerk of Scales shall weigh all jockeys out and the first four place finishers in.
(b) The Clerk of Scales shall record and publish on the notice board any overweight or any change of jockey, weight or racing colors as compared with those stated on the official program and shall promptly supply the racing officials with all pertinent changes.
(c) The Clerk of Scales shall promptly report to the Stewards any infraction of the Rules with respect to weight, weighing or riding equipment.
(d) The Clerk of Scales shall maintain and deliver to the Racing Secretary and the Horsemen's Bookkeeper at the end of each race day, a record of the weights carried by each horse in each race together with the name of each horse's jockey and the overweight carried by each jockey.
(e) All jockeys taking part in a race must be weighed out by the Clerk of Scales not less than twenty (20) minutes before the time fixed for the race (the horse in each instance being specified), and the number of the horse shall be exhibited officially as soon as possible, and the first four-place finishers shall be weighed in at the conclusion of the race.
(f) If the overweight is more than two (2) pounds in excess of the weight the horse is to carry (the owner or trainer consenting), the jockey shall declare the amount of overweight to the Clerk of Scales at least forty-five (45) minutes before the time appointed for the race and the Clerk shall have the overweight posted immediately on the Notice Board or announced publicly. Failure on the part of any jockey to comply with this rule shall be reported to the Stewards.
(g) Seven (7) pounds is the limit of the overweight any horse is allowed to carry, unless approved by the Stewards. Public announcement of the overweight must be made.
038-5 Wyo. Code R. § 5-3