Rule 17.56.201 - PERFORMANCE STANDARDS FOR NEW TANK SYSTEMS(1) In order to prevent releases due to structural failure, corrosion, or spills and overfills for as long as the UST system is used to store regulated substances, all owners and operators of new UST systems shall meet the following requirements: (a) each tank must be properly designed and constructed, and any portion underground that routinely contains product must be protected from corrosion, in accordance with any one of the codes of practice developed by a nationally recognized association or independent testing laboratory identified in (1)(a)(i) through (iii): (i) the tank is constructed of fiberglass-reinforced plastic in accordance with any one of the standards in (6)(a) and (b); or(ii) the tank is constructed of steel and cathodically protected in the following manner and in accordance with any one of the standards in (6)(c) through (j): (A) the tank is coated with a suitable dielectric material; (B) field-installed cathodic protection systems are designed by a corrosion expert;(C) impressed current systems are designed to allow determination of current operating status as required in ARM 17.56.302; and(D) cathodic protection systems are operated and maintained in accordance with ARM 17.56.302; or(iii) the tank is constructed of steel and clad or jacketed with a non-corrodible material in accordance with all of the standards in (6)(k) through (n);(b) the piping that routinely contains regulated substances, and is in contact with the ground, must be properly designed, constructed, and protected from corrosion in accordance with any one of the codes of practice developed by a nationally recognized association or independent testing laboratory identified in (1)(b)(i) and (ii): (i) the piping is constructed of non-corrodible material in accordance with all of the standards in (6)(o) and (p); or(ii) the piping is constructed of steel and cathodically protected in the following manner and in accordance with all of the standards in (6)(s) through (w): (A) the piping is coated with a suitable dielectric material;(B) field-installed cathodic protection systems are designed by a corrosion expert; (C) impressed current systems are designed to allow determination of current operating status as required in ARM 17.56.302; and(D) cathodic protection systems are operated and maintained in accordance with ARM 17.56.302;(c) to prevent spilling and overfilling associated with product transfer to the UST system, owners and operators shall use the following spill and overfill prevention equipment: (i) spill prevention equipment that will prevent release of product to the environment when the transfer hose is detached from the fill pipe (for example, a spill catchment basin); and(ii) overfill prevention equipment that will: (A) automatically shut off flow into the tank when the tank is no more than 95 percent full; or(B) alert the transfer operator when the tank is no more than 90 percent full by restricting the flow into the tank or triggering a high-level alarm.(iii) flow restrictors used in vent lines may not be used to comply with (1)(c)(ii) when overfill prevention is installed or replaced after October 13, 2018; and(iv) spill and overfill prevention equipment must be periodically tested or inspected in accordance with [17.56.306 ].(d) all tanks and piping must be properly installed in accordance with this chapter, the manufacturer's instructions or specifications, all permit conditions, and all applicable standards identified in (6);(e) upon completion of all work and testing performed pursuant to a permit issued under subchapter 13 for the installation or modification of an underground storage tank system, the licensed installer or department inspector shall certify, on a form approved by the department, compliance with the following requirements: (i) installation or modification in accordance with (1)(d); (ii) corrosion protection of steel tanks and piping under (1)(a) and (b); (iii) release detection under ARM 17.56.402 and 17.56.403; and(iv) spill and overfill protection under ARM 17.56.301.(2) Except for suction piping that meets the requirements in ARM 17.56.402, tanks and piping installed or replaced must be secondarily contained and use interstitial monitoring in accordance with ARM Title 17, chapter 56, subchapters 2 and 4.(3) Secondary containment must contain regulated substances leaked from the primary containment until detected and removed and prevent the release of regulated substances to the environment.(4) For cases where the piping is replaced, the entire piping run must be secondarily contained.(5) Each UST system must be equipped with under-dispenser containment pursuant to ARM 17.56.204.(6) The department adopts and incorporates by reference the version in effect on January 1, 2018, of the following standards, specifications, and publications: (a) Underwriters Laboratories Standard 1316, " Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Alcohols, and Alcohol-Gasoline Mixtures," which sets forth requirements for the manufacture and installation of glass-fiber-reinforced plastic underground storage tanks for petroleum products, a copy of which may be obtained from Underwriters Laboratories, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709;(b) Underwriters Laboratories of Canada Standard ULC-S615, "Standard for Reinforced Plastic Underground Tanks for Flammable and Combustible Liquids," which sets forth requirements for the manufacture and installation of horizontal reinforced plastic underground tanks for petroleum products, a copy of which may be obtained from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ontario, Canada M1R 3A9; (c) Steel Tank Institute, "Specification for STI-P3 ® Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks," which sets forth design and installation standards of cathodically protected steel underground storage tanks, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(d) Underwriters Laboratories Standard 1746, "External Corrosion Protection Systems for Steel Underground Storage Tanks," which sets forth design requirements for factory installed exterior corrosion protection systems for steel underground storage tanks intended for flammable and combustible liquids, a copy of which may be obtained from Underwriters Laboratories, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709;(e) Underwriters Laboratories of Canada Standard ULC-S603, "Standard for Steel Underground Tanks for Flammable and Combustible Liquids," which sets forth the requirements that cover single-wall and double-wall cylindrical steel tanks of the horizontal, nonpressure type that are used for the underground storage of flammable liquids and combustible liquids, a copy of which may be obtained from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ontario, Canada M1R 3A9;(f) Underwriters Laboratories of Canada Standard ULC-S603.1, "Standard for External Corrosion Protection Systems for Steel Underground Tanks for Flammable and Combustible Liquids," which sets forth the requirements for external corrosion protection systems on carbon steel underground storage tanks, a copy of which may be obtained from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ontario, Canada M1R 3A9;(g) Underwriters Laboratories of Canada Standard ULC-S631, "Standard for Isolating Bushing for Steel Underground Tanks Protected with External Corrosion Protection Systems," which sets forth requirements for low profile nylon isolating bushings with internal and external threads and component thread sealant, which are intended for use in the external corrosion protection of underground steel tanks, a copy of which may be obtained from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ontario, Canada M1R 3A9;(h) Steel Tank Institute Standard F841, "Standard for Dual Wall Underground Steel Storage Tanks," which sets forth design requirements for standard dual wall underground steel storage tanks, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(i) National Association of Corrosion Engineers Standard SP0285, "External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection," which sets forth cathodic protection standards for buried or submerged metallic liquid storage systems, a copy of which may be obtained from NACE International, P.O. Box 201009, Houston, TX 77216-1009, (281) 228-6200;(j) Underwriters Laboratories Standard 58, "Standard for Steel Underground Tanks for Flammable and Combustible Liquids," which sets forth requirements for horizontal atmospheric-type steel tanks intended for the underground storage of flammable and combustible liquids, and single wall tanks, secondary containment tanks, multiple compartment single wall, and multiple compartment secondary containment tanks, a copy of which may be obtained from Underwriters Laboratory, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709;(k) Steel Tank Institute ACT-100, F894, "Specification for External Corrosion Protection of FRP Composite Steel Underground Storage Tanks," which sets forth manufacturing specifications to build the ACT-100 FRP composite steel underground storage tank, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(l) Underwriters Laboratories Subject 971, "Standard for Nonmetallic Underground Piping For Flammable Liquids," which sets forth design standards for fiberglass reinforced plastic pipe, a copy of which may be obtained from Underwriters Laboratories, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709;(m) Steel Tank Institute ACT-100-U® Specification F961, "Specification for External Corrosion Protection of Composite Steel Underground Storage Tanks," which sets forth manufacturing requirements to build the ACT-100-U composite steel underground storage tank, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(n) Steel Tank Institute Specification F922, "Steel Tank Institute Specification for Permatank®," which sets forth manufacturing requirements to build a Permatank®, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(o) Underwriters Laboratories of Canada Standard ULC-S660, "Standard for Nonmetallic Underground Piping for Flammable and Combustible Liquids," which sets forth requirements for underground piping for flammable and combustible liquids , a copy of which may be obtained from Underwriters Laboratories of Canada, 7 Crouse Road, Scarborough, Ontario, Canada M1R 3A9;(p) National Fire Protection Association Standard 30, "Flammable and Combustible Liquids Code," which sets forth transferring and dispensing practices for flammable and combustible liquids, a copy of which may be obtained from the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269, (800) 344-3555;(q) American Petroleum Institute Recommended Practice 1615, "Installation of Underground Petroleum Storage Systems," which sets forth proper installation procedures for UST systems, a copy of which may be obtained from Global Engineering Documents, 15 Inverness Way East, M/S C303B, Englewood, CO 80112-5776, (303) 397-7956; (r) American Petroleum Institute Publication 1632, "Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems," which sets forth the cathodic protection standards for UST systems, a copy of which may be obtained from API Publications Department, 1220 L Street NW, Washington, DC 20005, (202) 682-8375;(s) Underwriters Laboratories Subject 971A, "Outline of Investigation for Metallic Underground Fuel Pipe," which sets forth manufacturing requirements for metallic and composite primary carrier, secondary containment, and integral primary/secondary pipe systems, a copy of which may be obtained from Underwriters Laboratories, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709;(t) Steel Tank Institute Recommended Practice R892, "Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems," which sets forth design, installation, and monitoring of corrosion control systems for underground metallic piping, a copy of which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake Zurich, IL 50047, (800) 438-8265;(u) National Association of Corrosion Engineers Practice SP0169, "Control of External Corrosion on Underground or Submerged Metallic Piping Systems," which sets forth practices for the control of external corrosion or buried or submerged metallic piping systems, a copy of which may be obtained from NACE International, P.O. Box 201009, Houston, TX 77216-1009, (281) 228-6200;(v) Petroleum Equipment Institute Publication RP100, "Recommended Practices for Installation of Underground Liquid Storage Systems," which sets forth proper installation procedures for UST systems, a copy of which may be obtained from Petroleum Equipment Institute, P.O. Box 2380, Tulsa, OK 74101, (918) 494-9696;(w) American National Standards Institute Standard B31.3, "Process Piping," which sets forth requirements for piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and related processing plants and terminals, a copy of which may be obtained from ANSI, 25 W. 43rd Street, 4th Floor, New York, NY, 10036, (212) 642-4900;(x) National Fire Protection Standard 30A, "Code for Motor Fuel Dispensing Facilities and Repair Garages," which sets forth safeguards for dispensing liquid and gaseous motor fuels into the fuel tanks of automotive vehicles and marine craft, a copy of which may be obtained from The American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017;(y) NACE International Standard Practice SP 0285, "External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection," which sets forth minimum requirements for using CP to control external corrosion of metallic UST systems, a copy of which may be obtained from NACE International, P.O. Box 201009, Houston, TX 77216-1009, (281) 228-6200; and(z) American Petroleum Institute 1626, "Storing and Handling Ethanol and Gasoline-Ethanol Blends at Distribution Terminals and Filling Stations," which describes recommended practices for the storing, handling, and fire protection of ethanol and gasoline-ethanol blends from E1 to E15 and from E65 to E100 (used for E85) at distribution terminals and filling stations, a copy of which may be obtained from API Publications Department, 1220 L Street NW, Washington, DC 20005, (202) 682-8375.Mont. Admin. r. 17.56.201
NEW, 1989 MAR p. 1912, Eff. 11/23/89; TRANS, from DHES, 1995 MAR p. 2259; AMD, 2003 MAR p. 1079, Eff. 5/23/03; AMD, 2007 MAR p. 1189, Eff. 8/24/07; AMD, 2010 MAR p. 1888, Eff. 8/27/10; AMD, 2013 MAR p. 1826, Eff. 10/18/13; AMD, 2016 MAR p. 1694, Eff. 9/24/2016; AMD, 2018 MAR p. 1954, Eff. 10/6/2018AUTH: 75-11-505, MCA; IMP: 75-11-505, MCA