Okla. Admin. Code § 165:15-7-5
The standard classification of diesel fuel, as described in ASTM D 975 and biodiesel as described in 17 O.S. §303, must be used.
Amended at 10 Ok Reg 4245, eff 8-12-93
Amended at 18 Ok Reg 1052, eff 5-11-01
Amended at 32 Ok Reg 768, eff 8-27-15
Amended at 33 Ok Reg 594, eff 8-25-16
Amended at 39 Ok Reg 954, eff 10-1-22