Okla. Stat. tit. 36, § 36-3637: Exceptions

This act shall not apply to any policy covering motor trucks

operated by a motor carrier as defined in 47 O.S. 1961, Section 161,

as amended, where the named insured has employees who operate motor

trucks or to any other commercial automobile liability policy

covering motor trucks where the named insured has employees and such

employees are covered by workers' compensation on the effective date

of the policy.