Okla. Admin. Code § 252:641-5-1
All solid pipe used in the conveyance of wastewater from a structure (home or business) shall comply with the following:
Added at 16 Ok Reg 1895, eff 6-11-99
Amended at 25 Ok Reg 2318, eff 7-11-08
Amended at 37 Ok Reg 1296, eff 9-15-20