Okla. Stat. tit. 68, § 68-720: Interstate carriers - Showing of public convenience and

necessity - Application of Act.

Nothing in this act shall be construed as requiring interstate

carriers to make a showing of "public convenience and necessity" in

order to secure any license or permit required by the provisions

hereof, and the provisions of this act shall apply to interstate

commerce only in so far as such regulation is permitted by the

Constitution of Oklahoma and the United States, and the holding of

any part of this act or any section or part thereof to be void or

ineffective for any cause by any court shall not affect any other

section or part of this act.