Okla. Admin. Code § 710:55-4-122
The exemption for diesel fuel as to which dye was added in a manner which conforms to federal requirements established by the Internal Revenue Code shall be perfected by a supplier, tank wagon importer, or other importer as a deduction on its monthly report.
Added at 14 Ok Reg 1083, eff 1-24-97 (emergency)
Added at 14 Ok Reg 2346, eff 6-12-97