Okla. Admin. Code § 325:85-15-35
Each Player Terminal and/or bill acceptor shall have the capability of detecting and displaying an error condition, for the conditions below. It is acceptable for the bill acceptor to disable or flash a light or lights to indicate the error has occurred, provided the information is communicated to the Player Terminal and the bill acceptor disables:
Added at 23 Ok Reg 1160, eff 4-6-05 (emergency)
Added at 23 Ok Reg 2089, eff 5-11-06 (emergency)
Added at 23 Ok Reg 2613, eff 6-25-06