The Contractor shall supply Liquefied Petroleum Gas to the locations detailed in the tender documentation. This list may be amended by the Client during the contract period, to include any of the Public Bodies listed at: https://www.dfpni.gov.uk/articles/list-public-bodies-which-ni-public-procurement-policy-applies Liquefied Petroleum Gas must conform to BS 4250: 1997 or its equivalent International or European Standard. The Contractor must ensure full compliance with the Pressure Systems and Transportable Gas Container Regulations (Northern Ireland) 1991 amended 1997 and 2002 and any subsequent amendments. The tender documentation indicates the estimated annual gas consumption and these estimates in no way constitute a guaranteed annual delivery requirement and could vary at each site. The type of delivery (top up or request for supply) required at each site is also indicated.