In Oklahoma, it is unlawful to operate a vehicle without the proper license plate or decal.
Punishment For Use of Improper License Plate in Tulsa
Okla. Stat. tit. 47 § 1151(A)(5)
Driving without proper license plate or decal is a misdemeanor punishable by a fine of up to $500.
Title 47. Motor Vehicles
Chapter 74 – Oklahoma Vehicle License And Registration Act
Section 1151 – Unlawful Acts – Penalties
A. It shall be unlawful for any person to commit any of the following acts:
5. To operate a vehicle without proper license plate or decal or on which all taxes due the state have not been paid;
Any person convicted of violating any provision of this subsection, other than paragraph 3 of this subsection, shall be deemed guilty of a misdemeanor and upon conviction shall be punished by a fine not to exceed Five Hundred Dollars ($500.00).