Metal piping of an existing underground storage tank system that routinely contains regulated substances and is in contact with the ground must be cathodically protected in accordance with a code of practice developed by a nationally recognized association or independent testing laboratory and must meet PSTD requirements.

Amended at 12 Ok Reg 2047, eff 7-1-95

Amended at 13 Ok Reg 1163, eff 9-11-95 (emergency)

Amended at 13 Ok Reg 3159, eff 9-11-95 (emergency)

Amended at 13 Ok Reg 2945, eff 7-11-96

Revoked at 18 Ok Reg 2378, eff 7-1-01

Added at 22 Ok Reg 1730, eff 7-1-05

Amended at 25 Ok Reg 1867, eff 7-1-08