Gas supply - health and safety

Though the numbers of major incidents have been low, there are each year a number of gas releases which occur as a result of mains failures.

There are potential hazards from these gas mains failures and HSE is working with Industry to mitigate the risks from these and major pipeline incidents

HSE is responsible for ensuring that those involved with the transmission, distribution and storage of natural gas comply with the relevant legislation.

Storage of gas in natural strata - application of COMAH

The COMAH Competent Authority (comprising of the Health and Safety Executive, Environment Agency and the Scottish Environmental Protection Agency) has recently concluded that the on-shore storage of natural gas in underground natural strata, such as depleted reservoirs, is subject to the Control of Major Accident Hazards Regulations 1999 (COMAH). This decision was effected from 26 February 2009.

• Further details

HSE's gas supply strategy

HSE has employed a rolling operational strategy to identify major gas safety issues and, where possible, improve existing standards. The main current key programme is the mains replacement programme.

Further information

• Information and guidance
• Gas supply FAQ's