Okla. Admin. Code § 252:628-7-6
Analyses performed for compliance purposes shall either be performed by a laboratory accredited by DEQ or by a laboratory operator certified by DEQ at the proper level. Process control tests may be performed by a laboratory operator certified by DEQ. See OAC 252:628-7-8 for proper laboratory operator classification.
Added at 35 Ok Reg 1311, eff 9-15-18