Okla. Admin. Code § 670:15-31-1
This establishes requirements, procedures, and standards for the certification of any public or private commercial truck driving school that has or maintains a program instructing students for a commercial license in the State of Oklahoma, public transit agency, state, county, or municipal government agency in the state, such as local school districts, the Oklahoma Department of Career and Technology Education, or institutions of higher education, or a private entity, and of commercial motor vehicle driver training instructors to administer the Class A, B or C driving skills portion and/or knowledge written portion of the examinations on the premises of the schools to qualified applicants for a commercial driver license.
Okla. Admin. Code § 670:15-31-1