§ 71.041 VEHICLE ENTERING HIGHWAY FROM PRIVATE ROAD OR DRIVEWAY.
   The driver of a vehicle about to enter, leave or cross a highway from or into a private road or driveway shall yield the right-of-way to all vehicles approaching on the highway.
(47 O.S. § 11-404)  (`83 Code, § 15-555)  Penalty, see § 71.999