Okla. Admin. Code § 325:20-1-19
The Racing Secretary shall write and publish conditions of all races and distribute them to horsemen as far in advance of the closing of entries as possible. He or she shall be responsible for the safekeeping of Registration Certificates and the return of same to the Trainers on request or at the conclusion of the race meeting. He or she shall record winning races on the form supplied by the breed registry, which shall remain attached to or part of the Registration Certificate. The Racing Secretary shall be responsible for the taking of entries, checking eligibility, closing of entries, selecting the races to be drawn, conducting the draw, posting the overnight sheet, compiling the official program, and discharging such other duties of their office as required by the rules of this Title or as directed by the Stewards.
Okla. Admin. Code § 325:20-1-19