Okla. Stat. tit. 37A, § 3-109
In order to regulate distribution of beer in this state and assure collection of all applicable taxes and fees, all beer sold in this state by a licensed distributor shall only be transported within this state to the licensed address and location of a licensed retailer or between the licensed addresses and locations of licensed retailers by a marked conveyance owned or leased by a licensed distributor.
Laws 2016, SB 383, c. 366, § 79, eff. October 1, 2018.