Okla. Admin. Code § 35:10-15-3
The Board shall require any weight, measure, or weighting and measuring instrument or device (except for cotton bale weighing devices at cotton gins in Oklahoma) to be issued a Certificate of Conformance prior to its use for commercial or law enforcement purposes.
Amended at 17 Ok Reg 1016, eff 5-11-00
Amended at 20 Ok Reg 15, eff 10-8-02 (emergency)
Amended at 20 Ok Reg 795, eff 5-12-03