scope:

This Standard outlines management procedures and safety precautions affecting the design, construction, maintenance and demolition of services, structures and other works in the vicinity of gas assets.

Note: HSG47 provides guidance on avoiding danger from underground services.

This Standard covers work in the vicinity of gas assets in easements, under highways and on private land.

This Standard applies to gas assets of all materials and at any maximum operating pressure (MOP).

Note 1: For working in the vicinity of an above ground installation (AGI) see Section 6.

Note 2: For working in the vicinity of a gas asset exceeding 7 bar see Section 7.

Note 3: For working in the vicinity of a gas asset not exceeding 7 bar see Section 8.

All pressures are gauge pressures unless otherwise stated.

Italicised text is informative and does not represent formal requirements.

Appendices are informative and do not represent formal requirements unless specifically referenced in the main sections via the prescriptive terms "must", "shall" or "should".