4.2.6 Tie-in (hot tap) work shall be performed on piping systems in accordance with the hot tapping procedure.
4.2.7 Pipe lifting shall be performed on load chart or other requirement in accordance with the lifting procedure.
4.2.8 Underground piping installed shall be performed on piping systems in accordance with the underground piping installation procedure.
4.2.9 All piping installed shall be pressure tested in accordance with the piping pressure test procedure.
4.2.10 All welding joints shall be coated or painted after pressure test in accordance with the painting procedure.