Okla. Admin. Code § 35:15-17-2
Animals older than the age of official calfhood vaccination may be vaccinated under specific conditions with a dose of vaccine as prescribed in the UM&R for Brucellosis Eradication. All eligible calves shall also be vaccinated and identified as official vaccinates.
Amended at 14 Ok Reg 2425, eff 6-26-97
Amended at 27 Ok Reg 2420, eff 7-25-10