Okla. Admin. Code § 252:301-7-13
Laboratories shall ensure that the PT provider has submitted all pertinent PT reports to the DEQ by 4:30 p.m. on or before July 15 of each year. Laboratories whose reports are postmarked or received after July 15 will not be considered for accreditation renewal on September 1.
Added at 25 Ok Reg 2247, eff 7-11-08