Sources

Government response (2010-03-18): Accepted Source: https://www.gov.uk/government/publications/the-government-response-to-the-icl-inquiry-report Text: The Government accepts this recommendation. We must have sufficient knowledge about the replacement material to be confident that a similar situation will not arise again. HSE will review the natural gas programme and identify any possible gaps. If additional research work is needed to ensure the re Progress update (2015-12-31): Completed Implementation confirmed by HSE. All buried metallic LPG service pipe replacements completed by 2015 deadline. Source: https://www.hse.gov.uk/gas/lpg/icl-inquiry.htm Progress update (2010-03-18): Completed HSE reviewed natural gas pipeline replacement research on polyethylene pipe long-term stability. Findings indicated PE pipes have long-term stability (50-year design life, potentially extendable). HSE consulted with IGEM, UKLPG and PE pipe manufacturers on integrity tests. Source: https://www.hse.gov.uk/gas/lpg/icl-inquiry.htm