These Procedures cover the design, installation, operation and maintenance of
gas supplies to, and installations within, any building containing multiple
individual dwellings and within the dwellings themselves (see Note 1). This
embraces buildings containing solely domestic dwellings, and dual-purpose
buildings containing both commercial properties such as shops and offices and
Note 1: Each (individual) dwelling would be independently occupied and require its own gas supply,
which may include a primary or secondary meter installation (which may be installed in, or
remote from, the dwelling). “Multiple individual dwellings” means more than one dwelling
within the single building and where the dwellings may share a common means of escape
from the building.
These Procedures do not cover detached, semi-detached or terraced houses when the
established industry standards such as BS 6400, BS 6891 and IGE/TD/4 contain sufficient
Note 2: These Procedures do not cover buildings that are solely commercial premises.
Note 3: These Procedures assume a gas supply layout as given in IGE/G/1 for “recommended gas
supply arrangements”. Where a “bulk meter” serves secondary meters, via installation
pipework, the principles of IGE/UP/2 also may be applicable.
Note 4: For clarity, these Procedures use the terms “dwelling” and “building” and not the term
“premises”. In this regard, terms and definitions vary from those given in IGE/G/1.
Cellars and basements do not constitute a storey for the purposes of deciding
whether a building is in the scope of IGE/G/5, but the Procedures apply to
cellars and basements below such buildings