Okla. Stat. tit. 59 § 1216
Licenses shall expire one (1) year after the date of their issuance or renewal and shall become invalid on that date unless renewed. It shall be the duty of the Oklahoma Department of Agriculture, Food, and Forestry to notify, at the registrant's last-registered address, every person registered under this act of the date of the expiration of the license and the amount of the fee that shall be required for its renewal for one (1) year; notice shall be mailed at least one (1) month in advance of the date of the expiration of the license. The fee for renewal of licenses shall not exceed Ten Dollars ($10.00). The Department shall make an exception to the foregoing renewal provisions in the case of a person while on active duty in any of the armed forces of the United States.
Okla. Stat. tit. 59, § 1216