Mo. Code Regs. Ann. tit. 12, § 50-30.029
the
PURPOSE: This rule sets forth duties of the jockey room custodian and valet attendants.
(1) The jockey room custodian shall-
(H) Assign to each jockey a locker capable of being locked for the use of the jockey in storing clothing, equipment and personal effects.
CODEOF STATE REGULATIONS 12 CSR 50-30
(2) Valet Attendants.