CAN/ULC-S676:2020

1.1 This Standard covers the refurbishing of shop fabricated tanks built to nationally recognized Standards listed in Tank Eligibility, Sections 12 and 18. NOTE: In the context of this Standard, refurbishing refers to repairs to, and a limited set of modifications of, tanks using materials at least equivalent to those used in the original manufacture and does not include retrofit. Refer to Standard CAN/ULC-S669, Standard for Internal Retrofit Systems for Underground Tanks for Flammable and Combustible Liquids, for requirements applicable to retrofit activities. 1.2 This Standard provides minimum requirements for the inspection, evaluation and refurbishing of steel underground and aboveground storage tanks and fibre reinforced plastic underground storage tanks for flammable liquids and combustible liquids. This Standard addresses the refurbishing of tanks in a refurbishing company's facility in Part II, the refurbishing of tanks at their installed location in Part III, and also provides inspection criteria for the frequent relocation of aboveground tanks in Part IV. NOTE: Refer to Annex A for examples of flowcharts applicable to refurbishing. 1.3 The installation and use of refurbished tanks may be covered by the requirements of the Authority Having Jurisdiction and may include by reference, but are not limited to: a) National Fire Code of Canada, Part 4; b) CSA B139, Installation Code for Oil Burning Equipment; and c) CCME PN 1326, Environmental Code of Practice for Aboveground and Underground Storage Tank Systems Containing Petroleum and Allied Petroleum Products. 1.4 The transport of tanks to a refurbishing facility is not within the Scope of this Standard. NOTE: Authorities Having Jurisdiction may have requirements for the cleaning and preparation of tanks for removal from service, prior to transport to the refurbishing facility. 1.5 This Standard is intended for use by organizations and/or individuals who are knowledgeable and experienced in underground tank or aboveground tank fabrication, repair, modification and inspection. NOTE: Refer to Personnel Qualifications, Sections 11 or 17, as applicable. 1.6 These requirements apply to all repair activities of storage tanks and integral appurtenances designed to contain flammable liquids or combustible liquids, under atmospheric pressure.