Okla. Stat. tit. 6, § 6-2119: Giving of notice

Except as otherwise provided in this act, whenever the

Commissioner is required to give notice to any applicant or

licensee, such requirement shall be complied with if, within the

time fixed herein, such notice shall be enclosed in an envelope

plainly addressed to such applicant or licensee, at the address set

forth in the application or license, United States postage fully

prepaid, and deposited registered or certified in the United States

mail.