Okla. Stat. tit. 68, § 68-500.56: Shipping papers to meet tamper-resistant standards

Each terminal operator in this state and every supplier licensed

by this state for the collection of tax on motor fuel shall cause

terminal-issued shipping papers to meet such tamper-resistant

standards as the Commission may by regulation require including, but

not limited to messages which identify whether shipping papers have

been photocopied, numbering systems, nonreproducible coding and

other devices. However, the Commission may not make any such

regulations effective earlier than twenty-four (24) months after the

promulgation of a final regulation imposing the requirements.