The UK gas market, regulated by Ofgem, is split into several phases: Production, Transmission, Distribution and Supply. The Distribution system connects the transmission system to the consumers within a region. IGTs are networks embedded within the distribution system that own the ‘last mile’ of gas infrastructure within a new development.

Five phases of the UK gas market

4 workers

Typically, all new property developments will require a new gas distribution network and those networks are installed by a qualified Utility Infrastructure Providers (UIP) accredited to the Lloyds Register Gas Industry Registration Scheme (GIRS).

As an Ofgem regulated Independent Gas Transporter (IGT) EA Pipelines adopts new gas distribution assets constructed by UIPs after agreeing the value of the assets

Asset value proposal form

IGTs are then responsible for the operation, maintenance, control, security and integrity of their own networks. Consumers connected to an IGT network will have the same rights to choose a supplier of their choice as they would if connected to a Gas Distribution Network (GDN)

In an Emergency please ring the gas emergency hotline 0800 111 999



  • Operate any electrical switches (on or off)
  • Smoke or use a naked flame


  • Open doors and/or windows to ventilate the area
  • Check your gas appliances and turn them off
  • Turn the gas supply off at the main meter/or Emergency Control Valve
  • Telephone the free National Gas Emergency Service on 0800 111 999, delivered by Cadent Gas
  • If a fire has started on the premises, immediately activate the fire alarm, evacuate the premises and telephone the fire brigade

Find what you should do in an emergency involving gas or carbon monoxide

Cadent Gas


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