This Standard sets forth minimum design and construction requirements for fibre reinforced plastic@ non-pressure tanks that are used for the underground storage of flammable and combustible liquids@ such as: a) Petroleum products@ including petroleum hydrocarbon fuels with low-biofuels blends@ per specifications@ and similar flammable or combustible liquid petroleum derivatives@ such as fuel components (cetane@ hexane@ heptane)@ and oils (lubricating@ hydraulic@ machine); b) Oxygenated fuel blends@ including all ??troleum product??iquids plus petroleum hydrocarbon fuels with low-biofuels blends; c) Oxygenates@ including all ??petroleum product?? and ??ygenated fuel blends??iquids plus pure/ denatured or highest oxygenated blend stocks for use in mixing of dispensed lower fuel-blends and components@ such as biodiesel and ethanol; and d) Other flammable and combustible liquids (for which the test fuels in Appendix A are not considered to be sufficient or applicable) that can be demonstrated or determined to be compatible with the reinforced plastic underground tank materials as determined by the certifier. NOTE: The test fuels in Appendix A are considered to be sufficient and representative for US or Canadian approved motor fuels@ off-road fuels@ gasoline from renewable and petroleum feedstocks@ diesel@ renewable diesel@ synthetic diesel@ biodiesel@ kerosene@ aviation fuels@ jet fuels@ fuel oil and heating oil as referenced in (a)@ (b)@ and (c). This Standard covers tanks of either single@ double or multiple wall construction. Tanks covered by this Standard are fabricated@ inspected@ and tested for leakage prior to shipment from the factory as completely assembled vessels. This Standard covers tanks where the primary tank may have a single compartment or have multiple compartments. These tanks are intended for installation and use in accordance with applicable documents in the following list: a) In Canada: 1) National Fire Code of Canada; 2) CAN/CSA-B139@ Installation code for oil-burning equipment; 3) CCME PN1326@ Environmental Code of Practice for Aboveground and Underground Storage Tank Systems Containing Petroleum and Allied Petroleum Products; 4) Regulations of the authority having jurisdiction; and b) In the United States: 1) Standard for the Installation of Oil-Burning Equipment@ NFPA 31; 2) Flammable and Combustible Liquids Code@ NFPA 30; and 3) Code for Motor Fuel Dispensing Facilities and Repair Garages@ NFPA 30A@ as applicable. Accessories@ such as@ ladders@ tank sumps@ risers@ and guide lugs@ that do not affect tank performance and are attached to the tank internally or externally during manufacture are permitted but not covered by this standard.