Section 5.24 - Weights and Weighing(1) All greyhounds shall be weighed in one hour before the time of the first race of the day.(2) Either the owner, trainer, assistant trainer or the licensed authorized agent of the owner shall bring greyhounds to the weighing-in room.(3) At weighing-in time the tattoo number must identify all greyhounds.(4) At weighing-out time the same identification procedure as prescribed by 205 CMR 5.24(3) are to be followed. Identification shall be made by the Commission Judge and/or the Associate Commission Judge.(5) Before any greyhound is allowed to school or race at any track, the owner or trainer must establish the racing weight with the Clerk of Scales of each greyhound he enters.(6) At weighing-in time, should there be a variation of more than 11/2 pounds either way from its established weight, the Judges shall order said greyhound scratched.(7) At weighing-out time, if a greyhound loses weight in excess of two pounds while in the lockout kennels, the Judges shall order said greyhounds scratched. However, in the opinion of the Veterinarian that such loss of weight while in the lock-out kennel does not impair the racing condition of the greyhound the Judges may allow said greyhound to race.(8) The weight regulations provided in 205 CMR 5.24(1) through (7), shall be printed in the daily program.(9) The established racing weight may be changed from time to time on written request of the owner or trainer and by written consent of the Judges, provided such change is made four racing days before the greyhound is allowed to race at the new weight. (a) All greyhounds having an established weight change of more than one pound must be schooled at least once or more at the discretion of the Judges at the new established weight before being eligible for starting.(b) Greyhounds that have not raced or schooled officially for a period of three weeks will be allowed to established new racing weight with the written consent of the Judges and may be schooled officially immediately upon receipt of said written consent.(10) The Judges shall have the privilege of weighing a greyhound entered in a race at any period from the time he is entered in a race until post time.(11) Immediately after being weighed-in the greyhound shall be placed in lock-out kennels under the supervision of the Paddock Judge, and no owner or other person excepting the Paddock Judge, Veterinarian, Kennel Master, Scale Clerk, Lead-Outs, Judges, or Commission's representatives, shall be allowed in or near the lock-out kennels.