storage tanks are , and The Building Regulations (Approved Document J).

The Oil Storage Regulations (2001) apply to oil tanks used for commercial and industrial purposes, or domestic tanks over 3500 litres in capacity. They state that the storage tank should be of "sufficient strength and structural integrity to ensure that it is unlikely to burst or leak in its ordinary use". The tank, along with any filters, gauges, valves or ancillary equipment, must be contained