# 2023 Lng IA Question Set - **operation:** document - **citation:** PHMSA LNG.2023.01 - **title:** 2023 Lng IA Question Set - **source type:** inspection - **agency:** Pipeline and Hazardous Materials Safety Administration - **status:** guidance - **official:** true - **published on:** 2022-12-28 - **effective on:** 2022-12-28 - **summary:** PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 Design and Construction - Facility Siting 1. Facility Siting Provisions Does the facility siting and layout process require that a site-specific evaluation for potential - **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-2023-lng-ia-question-set.json - **markdown:** https://regulus.evalyn.ai/document/phmsa-2023-lng-ia-question-set.md - **app url:** https://regulus.evalyn.ai/document/phmsa-2023-lng-ia-question-set - **source url:** https://primis.phmsa.dot.gov/IA-Releases/ia-release-notes/notes/iac-fed.2023.01 **body:** <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 Design and Construction - Facility Siting 1. Facility Siting Provisions Does the facility siting and layout process require that a site-specific evaluation for potential incidents must be prescribed in accordance with 193.2051? (DC.SITING.PLANTSITING.P) 193.2051 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.1.1;NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.3.4;NFPA 59A (2001), Section 2.2.3.5;193.2017(b);193.2017(c);193.2101(b)) 2. Facility Siting Provisions Do records indicate facility siting and layout requirements of NFPA 59A (2001), Sections 2.2.3.2 and 2.2.3.4 were met for all hazardous liquids' (LNG, flammable refrigerants, and flammable liquids) hazards? (DC.SITING.PLANTSITING.R) 193.2051 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.1.1;NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.3.2;NFPA 59A (2001), Section 2.2.3.4;NFPA 59A (2001), Section 2.2.3.5;193.2101(b);) 3. Facility Siting Provisions Do field observations confirm hazardous liquid storage tanks, refrigerant storage vessels, and major equipment were installed at siting locations in accordance with Part 193 and NFPA 59A (2001)? (DC.SITING.PLANTSITING.O) 193.2051 (193.2301;NFPA 59A (2001), Section 2.1.1, 2.1.2, 2.2.3.4, and 2.2.3.5;NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.3.4;NFPA 59A (2001), Section 2.2.3.5) 4. Thermal Radiation Protection Does the siting and layout process require that thermal radiation exclusion zones must be established in accordance with 193.2057? (DC.SITING.THERMRADPROT.P) 193.2057(a) (193.2017(a);193.2051;NFPA 59A (2001), Section 2.2.3.2;NFPA 59A (2001), Section 2.2.3.5;193.2057(b);193.2057(c);193.2017(b);193.2017(c)) 5. Thermal Radiation Protection Do records indicate that thermal radiation exclusion zone(s) for each LNG container and each LNG transfer system were established in accordance with 193.2057 and NFPA 59A (2001), Section 2.2.3.2? (DC.SITING.THERMRADPROT.R) 193.2057(a) (193.2051;193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.3.2;193.2057(b);193.2057(c);193.2101(b);NFPA 59A (2001), Section 2.2.3.5) 6. Thermal Radiation Protection Do field observations confirm that the distance from the impoundment system(s) to the property line is consistent with the facility plot plans as described in the Hazard Analysis Report? (DC.SITING.THERMRADPROT.O) 193.2057(a) (193.2101(a);193.2301;193.2303;NFPA 59A (2001), Section 2.2.3.2;NFPA 59A (2001), Section 2.2.3.5;193.2057(b);193.2057(c);193.2101(b)) 7. Flammable Vapor-Gas Dispersion Protection Does the siting and layout process require that flammable vapor- gas dispersion exclusion zones must be established in accordance with 193.2059? (DC.SITING.GASDISPPROT.P) 193.2059(a) (193.2017(a);193.2051;NFPA 59A (2001), Sections 2.2.3.3, 2.2.3.4, and 2.2.3.5;193.2059(b);193.2059(c);193.2017(b);193.2017(c)) LNG.2023.01 Page 1 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 8. Flammable Vapor-Gas Dispersion Protection Do records (i.e., plot plans) indicate that flammable vapor-gas dispersion zones were determined in accordance with the requirements of 193.2059 and NFPA 59A (2001), Sections 2.2.3.3 and 2.2.3.4? (DC.SITING.GASDISPPROT.R) 193.2059(a) (193.2051;193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.3.3;NFPA 59A (2001), Section 2.2.3.4;NFPA 59A (2001), Section 2.2.3.5;193.2059(b);193.2059(c);193.2101(b)) 9. Flammable Vapor-Gas Dispersion Protection Do field observations verify that the flammable vapor-gas dispersion zone(s) were determined in accordance with 193.2059 and NFPA 59A (2001), Sections 2.2.3.3 and 2.2.3.4? (DC.SITING.GASDISPPROT.O) 193.2059(a) (193.2301;193.2303;NFPA 59A (2001), Section 2.2.3.3;NFPA 59A (2001), Section 2.2.3.4;NFPA 59A (2001), Section 2.2.3.5;193.2059(b);193.2059(c)) Design and Construction - Facility Layout 1. Storage Tanks Separation Distance and Layout Does the design process require minimum distances of LNG and flammable liquids storage tanks from property lines and buildings, and from other storage tanks as required in NFPA 59A (2001), Table 2.2.4.1? (DC.LAYOUT.TANKDISTANCES.P) 193.2401 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.2.4.1;193.2101(b);193.2017(b);193.2017(c)) 2. Storage Tanks Separation Distance and Layout Do records (i.e., plot plans) indicate the minimum distances of LNG and flammable liquids storage tanks from property lines and buildings, and from other storage tanks are IAW NFPA 59A (2001), Table 2.2.4.1? (DC.LAYOUT.TANKDISTANCES.R) 193.2401 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.4.1;193.2101(b)) 3. Storage Tank Isolation Valve Spacing Does the design process require a clear space of at least 3 feet for access to all isolation valves serving multiple containers? (DC.LAYOUT.TANKVALVE.P) 193.2401 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.2.4.2;193.2017(b);193.2017(c);193.2101(b)) 4. Storage Tank Isolation Valve Spacing Do records (i.e., plot plans) indicate at least 3 feet is provided for access to all isolation valves serving multiple storage containers? (DC.LAYOUT.TANKVALVE.R) 193.2401 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.4.2;193.2101(b)) 5. Storage Tank Isolation Valve Spacing Do field observations verify a clear space of at least 3 feet is provided for access to all isolation valves serving multiple storage containers? (DC.LAYOUT.TANKVALVE.O) 193.2301 (193.2303;NFPA 59A (2001), Section 2.2.4.2) LNG.2023.01 Page 2 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 6. LNG Storage Tanks Located Outside Does the design process require LNG storage containers of greater than 125 gallon capacity to be located external to buildings? (DC.LAYOUT.TANKOUTSIDE.P) 193.2401 (193.2017(a);193.2301;NFPA 59A (2001), Section 2.2.4.3;193.2017(b);193.2017(c)) 7. LNG Storage Tanks Located Outside Do records (i.e., plot plans) indicate the LNG storage containers with greater than 125 gallon capacity are located external to buildings? (DC.LAYOUT.TANKOUTSIDE.R) 193.2401 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.4.3;193.2101(b)) 8. Process Equipment Spacing and Layout Does the design process require process equipment, fired equipment, loading/unloading connections, and other equipment to be located in accordance with the spacing requirements in NFPA 59A (2001) Sections 2.2.6 and 2.2.7? (DC.LAYOUT.EQUIPSPACING.P) 193.2401 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.2.6.1;NFPA 59A (2001), Section 2.2.6.2;NFPA 59A (2001), Section 2.2.7.2;193.2101(b);193.2017(b);193.2017(c)) 9. Process Equipment Spacing and Layout Do records (i.e., plot plans) indicate the process equipment, fired equipment, and loading/unloading connections, and other equipment are located IAW NFPA 59A (2001), Sections 2.2.6 and 2.2.7? (DC.LAYOUT.EQUIPSPACING.R) 193.2401 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.6.1;NFPA 59A (2001), Section 2.2.6.2;NFPA 59A (2001), Section 2.2.7.2;193.2101(b)) 10. Flammable Refrigerant and Liquids Storage Tanks Layout Does the design process require that flammable refrigerants and flammable liquid storage tanks be located outside of an LNG container impounding area? (DC.LAYOUT.REFRIGERANT.P) 193.2401 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.2.1.4;193.2017(b);193.2017(c);193.2101(b)) 11. Flammable Refrigerant and Liquids Storage Tanks Layout Do records (i.e., plot plans) indicate flammable liquid storage tanks are located outside of the LNG storage impounding area? (DC.LAYOUT.REFRIGERANT.R) 193.2401 (193.2101(a);193.2101(b);NFPA 59A (2001), Section 2.2.1.4) 12. Plot Plan - Tanks and Equipment Layout Do field observations verify that storage tanks/containers (LNG and flammable liquid storage), equipment, process vessels, transfer facilities, and flammable vapor mitigation measures are installed according to the locations identified in the plot plans? (DC.LAYOUT.PLOTPLAN.O) 193.2301 (193.2303;NFPA 59A (2001), Section 2.2.1.4;NFPA 59A (2001), Section 2.2.4.1;NFPA 59A (2001), Section 2.2.4.2;NFPA 59A (2001), Section 2.2.4.3;NFPA 59A (2001), Section 2.2.6.1;NFPA 59A (2001), Section 2.2.6.2;NFPA 59A (2001), Section 2.2.7.2) 13. Layout Distance of LNG Storage Tanks to Runway Where there is an airport within one mile of the LNG facility, does the layout design process include LNG storage tank location requirements of 193.2155(b)? (DC.LAYOUT.RUNWAY.P) 193.2155(b) (193.2101(a);193.2017(a);193.2101(b);193.2017(b);193.2017(c)) LNG.2023.01 Page 3 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 14. Layout Distance of LNG Storage Tanks to Runway Where there is an airport within one mile of the LNG facility, do records indicate that the LNG storage tank has been constructed at the prescribed minimum distance from the nearest point of a runway in accordance with 193.2155(b)? (DC.LAYOUT.RUNWAY.R) 193.2155(b) (193.2101(a);193.2301;193.2101(b)) Design and Construction - Impoundment, Dikes, and Drainage 1. Siting - Spill Containment Does the siting and layout process require that spill containment system(s) must retain spilled LNG, flammable refrigerants, and flammable liquids within the limits of the facility property and for surface water drainage? (DC.IMPOUND.SPILLCONTROL.P) 193.2051 (193.2017(a);193.2101(a);NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.1.1;NFPA 59A (2001), Section 2.2.1.2(4);193.2017(b);193.2017(c);193.2101(a)) 2. Siting - Spill Containment Do records indicate that retention of spilled LNG, flammable refrigerants, and flammable liquids would be within the limits of the facility property and for surface water drainage? (DC.IMPOUND.SPILLCONTROL.R) 193.2051 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.1.1;NFPA 59A (2001), Section 2.2.1.2(4);193.2101(b)) 3. Siting - Spill Containment Do field observations confirm that spill containment and impoundment systems were installed to retain spilled LNG, flammable refrigerants, and flammable liquids within the limits of facility property and for surface water drainage? (DC.IMPOUND.SPILLCONTROL.O) 193.2301 (193.2101(a);193.2303;NFPA 59A (2001), Section 2.1.2;NFPA 59A (2001), Section 2.2.1.1;NFPA 59A (2001), Section 2.2.1.2(4);193.2101(b)) 4. Impoundment Capacity Does the design process (i.e., specifications) for each impoundment system serving an LNG storage tank meet the capacity requirements of 193.2181? (DC.IMPOUND.CAPACITY.P) 193.2181(a) (193.2017(a);193.2101(a);193.2181(b);193.2181(c);193.2017(b);193.2017(c);193.2101(b)) 5. Impoundment Capacity Do records indicate the impoundment capacity for LNG tanks met the minimum volume capacity requirements of 193.2181? (DC.IMPOUND.CAPACITY.R) 193.2181(a) (193.2101(a);193.2301;193.2181(b);193.2181(c);193.2101(b)) 6. Covered Impoundment System Design Does the impoundment system design process prohibit covered impounding systems or “enclosed drainage channels” for LNG as described in 193.2167 and NFPA 59A (2001) Section 2.2.2.3 with certain exceptions? (DC.IMPOUND.COVSYSTEM.P) 193.2167 (193.2017(a);NFPA 59A (2001), Section 2.2.2.3;193.2017(b);193.2017(c)) LNG.2023.01 Page 4 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 7. Covered Impoundment System Design Do records indicate any covered impounding systems or “enclosed drainage channels for LNG” as prohibited in Part 193 and NFPA 59A (2001) Section 2.2.2.3 with certain exceptions? (DC.IMPOUND.COVSYSTEM.R) 193.2167 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.2.3;193.2101(b)) 8. Covered Impoundment System Design Do field observations indicate any covered impounding systems were constructed as prohibited in Part 193 and NFPA 59A (2001) with exceptions? (DC.IMPOUND.COVSYSTEM.O) 193.2167 (193.2303;NFPA 59A (2001), Section 2.2.2.3) 9. Impounding Area and Drainage System Design 1 Do records indicate the impounding areas and drainage systems have been designed and constructed in accordance with NFPA 59A (2001) Section 2.2.2.4? (DC.IMPOUND.DRAINAGEDES1.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 2.2.2.4;193.2101(b)) 10. Impounding Area and Drainage System Design 2 Do records indicate the structural members of the impoundment systems and/or drainage systems have been designed and constructed as required in 193.2155? (DC.IMPOUND.DRAINAGEDES2.R) 193.2155(a) (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.2.4;193.2155(b);193.2101(b)) 11. Dike Construction Do field observations indicate the outer wall of a dike used as an impounding system is constructed of concrete in accordance with 193.2161? (DC.IMPOUND.DIKECONSTR.O) 193.2161 (193.2101(a);193.2303;193.2101(b)) 12. Water Removal System Does the design process for the water removal system meet the requirements of 193.2173? (DC.IMPOUND.WATERREMOVAL.P) 193.2173(a) (193.2017(a);193.2101(a);NFPA 59A (2001) Section 2.2.2.7;193.2173(b);193.2173(c);193.2017(b);193.2017(c);193.2101(b)) 13. Water Removal System Do records indicate the design of the water removal system meets the requirements of 193.2173? (DC.IMPOUND.WATERREMOVAL.R) 193.2173(a) (193.2101(a);193.2301;NFPA 59A (2001) Section 2.2.2.7;193.2173(b);193.2173(c);193.2101(b)) 14. Water Removal System Do field observations verify that the water removal systems have been constructed in accordance with 193.2173? (DC.IMPOUND.WATERREMOVAL.O) 193.2173(a) (193.2101(a);193.2303;NFPA 59A (2001) Section 2.2.2.7;193.2173(b);193.2173(c);193.2101(b)) 15. Impoundment Siting for Protection of Marine Carriers Do records indicate that radiant heat fluxes from a fire over the LNG storage container impounding area do not extend to any LNG marine carrier per NFPA 59A (2001), Section 2.2.3.6? (DC.IMPOUND.SITINGMARINE.R) 193.2401 (193.2101(a);193.2301;NFPA 59A (2001), Section 2.2.3.6;193.2101(b)) LNG.2023.01 Page 5 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 Design and Construction - LNG Storage Tanks 1. LNG Storage Tanks - LNG Density Does the LNG storage tank design process specify that the density of the LNG liquid shall be assumed to be the actual mass per unit volume at the minimum storage temperatures, except that in no case shall the density assumed be less than 29.3 lb/ft3 (470 kg/m3)? (DC.TANKS.DENSITY.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.2.7;193.2101(b);193.2017(b);193.2017(c)) 2. LNG Storage Tanks - Basic Design Requirements Does the LNG storage tank specification incorporate all of the requirements of NFPA 59A (2001), Section 4.1.2, for basic design considerations? (DC.TANKS.BASICDESIGN.P) 193.2101(a) (193.2017(a);193.2301;NFPA 59A (2001), Section 4.1.2.1;193.2101(b);193.2017(b);193.2017(c);NFPA 59A (2001), Section 4.1.2.2;NFPA 59A (2001), Section 4.1.2.3;NFPA 59A (2001), Section 4.1.2.5) 3. LNG Storage Tanks - MAWP Do records and basic design documents indicate the maximum allowable working pressure (MAWP) and maximum allowable vacuum for each LNG storage tank? (DC.TANKS.MAWP.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.1;193.2101(b)) 4. LNG Storage Tanks - Materials of Construction Do records (ref. tank drawings) indicate that the materials of construction for the parts of the LNG containers that normally are in contact with LNG or cold LNG vapor are compatible with LNG and intended for service at -270°F? (DC.TANKS.MATERIALS.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.2;193.2101(b)) 5. LNG Storage Tanks - Piping Requirements Do records (ref. tank piping specifications) indicate that piping internal and external to the LNG container is designed in accordance with the requirements in NFPA 59A (2001), Chapter 6? (DC.TANKS.PIPING.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.3;193.2101(b)) 6. LNG Storage Tanks - Top & Bottom Filling Does the LNG storage tank specification(s) address stratification and rollover (i.e., top & bottom filling)? (DC.TANKS.TOPBOTTOMFILL.P) 193.2101(a) (193.2017(a);193.2301;NFPA 59A (2001), Section 4.1.2.4;193.2101(a);193.2017(b);193.2017(c)) 7. LNG Storage Tanks - Top & Bottom Filling Do records (ref. LNG tank drawings) indicate that both top and bottom fill capability, or other positive means, are provided to prevent stratification and rollover? (DC.TANKS.TOPBOTTOMFILL.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.4;193.2101(b)) LNG.2023.01 Page 6 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 8. LNG Storage Tanks - Low Temp Protection Do records (ref. LNG tank drawings) indicate that protection from low temperature was provided for the outer surface areas of an LNG container that could be exposed to leakage of LNG or cold vapor? (DC.TANKS.LOWTEMPPROT.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.5;193.2101(b)) 9. LNG Storage Tanks - Low Temp Protection Do field observations confirm that protection from low temperature was provided for the outer surface area of an LNG container that could be exposed to leakage of LNG or cold vapor? (DC.TANKS.LOWTEMPPROT.O) 193.2101(a) (193.2303;NFPA 59A (2001), Section 4.1.2.5;193.2101(b)) 10. LNG Storage Tanks - Foundations For two or more LNG tanks within a common dike, does the LNG storage container design process require foundations to be capable of withstanding contact with LNG or to be protected against contact with an accumulation of LNG that might endanger structural integrity? (DC.TANKS.FOUNDATIONS.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.2.6;193.2101(b);193.2017(b);193.2017(c)) 11. LNG Storage Tanks - Foundations For two or more LNG tanks in a common dike, do records (e.g., design drawings and specifications) indicate that LNG storage tank foundations were constructed to be capable of withstanding contact with LNG or to be protected against contact with an accumulation of LNG that might endanger structural integrity? (DC.TANKS.FOUNDATIONS.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.2.6;193.2101(b)) 12. LNG Storage Tanks - Foundation Design Does the design process of stationary LNG storage container foundation(s) meet the requirements of NFPA 59A (2001), Section 4.1.7? (DC.TANKS.FOUNDATIONDES.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.7;193.2101(a);193.2017(b);193.2017(c)) 13. LNG Storage Tanks - Foundation Design Do records (i.e., structural drawings and calculations and geotechnical report) indicate that stationary LNG storage container foundation(s) was/were designed and constructed in accordance with the requirements of NFPA 59A (2001), Section 4.1.7 and that a subsurface soils investigation was performed? (DC.TANKS.FOUNDATIONDES.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.7;193.2101(b)) 14. LNG Storage Tanks - Foundation Design Do field observations confirm stationary LNG storage container foundation are installed in accordance with the requirements of NFPA 59A (2001), Section 4.1.7? (DC.TANKS.FOUNDATIONDES.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.1.7) 15. Storage Container - Seismic Design Does the project design process require that the seismic design of stationary field-fabricated LNG storage containers and its impoundment system meet the requirements of NFPA 59A (2006), Section 7.2.2? (DC.TANKS.SEISMIC.P) 193.2101 (193.2017(a);NFPA 59A (2006), Section 7.2.2;193.2101(b);193.2017(b);193.2017(c)) LNG.2023.01 Page 7 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 16. Storage Container - Seismic Design Do records (e.g., structural drawing and calculations; ground motion hazard study) indicate the seismic design of stationary LNG storage containers and impoundment systems meet the requirements of NFPA 59A (2006), Section 7.2.2? (DC.TANKS.SEISMIC.R) 193.2101(a) (193.2301;NFPA 59A (2006), Section 7.2.2;193.2101(b)) 17. Storage Tanks & Structures - Wind and Snow Load Design Does the design process for LNG storage tanks and structures include design for wind and snow loads to meet requirements of NFPA 59A (2001), Sections 4.1.4, and ASCE 7? (DC.TANKS.WINDSNOWDES.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.4;ASCE 7;193.2101(b);193.2017(b);193.2017(c)) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 18. Storage Tanks & Structures - Wind and Snow Load Design Do records (e.g., design drawings, specifications, and calculations) indicate that LNG storage tanks and/or structures were constructed in accordance with the wind and snow load requirements in NFPA 59A (2001), Section 4.1.4, and ASCE 7? (DC.TANKS.WINDSNOWDES.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.4;ASCE 7;193.2101(b)) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 19. LNG Storage Container - Insulation Does the process for design of stationary LNG storage tank insulation meet the requirements of NFPA 59A (2001), Section 4.1.5? (DC.TANKS.INSULATION.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.5;193.2101(b);193.2017(b);193.2017(c)) 20. LNG Storage Container - Insulation Do records (i.e., tank design documents and drawings) indicate that stationary LNG storage container insulation met the requirements of NFPA 59A (2001), Section 4.1.5? (DC.TANKS.INSULATION.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.5;193.2101(b)) 21. LNG Storage Container - Insulation Do field observations confirm that stationary LNG storage container insulation was installed in accordance with the requirements of NFPA 59A (2001), Section 4.1.5? (DC.TANKS.INSULATION.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.1.5) 22. LNG Concrete Storage Container Design Does the design process require concrete storage containers to be designed IAW NFPA 59A (2001), Section 4.3, and ACI 318? (DC.TANKS.CONCRETECONTDES.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Sections 4.3;API Standard 620;ACI 318;ASME Boiler & Pressure Vessel Code;193.2101(b);193.2017(b);193.2017(c)) LNG.2023.01 Page 8 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 23. LNG Concrete Storage Container Design Do records (i.e., tank design specifications) demonstrate concrete storage containers meet the applicable design requirements of NFPA 59A (2001), Section 4.3, and ACI 318? (DC.TANKS.CONCRETECONTDES.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.3;API Standard 620;ACI 318;ASME Boiler & Pressure Vessel Code;193.2101(b)) 24. LNG Concrete Storage Container Design Do field observations confirm concrete LNG storage containers meet the applicable design requirements of NFPA 59A (2001), Section 4.3 and ACI 318? (DC.TANKS.CONCRETECONTDES.O) 193.2101 (193.2303;NFPA 59A (2001), Section 4.3;API Standard 620;ACI 318;ASME Boiler & Pressure Vessel Code) 25. LNG Storage Tank - Non-Metallic Membrane Liner For LNG storage tanks where nonmetallic membrane liners are used, does the design process specify that they are non-flammable? (DC.TANKS.NONMETALLINER.P) 193.2187 (193.2017(a);193.2017(b);193.2017(c)) 26. LNG Storage Tank - Non-Metallic Membrane Liner Do records indicate that if a nonmetallic membrane liner was installed in an LNG storage tank that it was non-flammable? (DC.TANKS.NONMETALLINER.R) 193.2187 (193.2119;193.2101(a);193.2301;193.2101(b)) 27. LNG Storage Tank - Non-Metallic Membrane Liner Where a nonmetallic membrane liner was installed in an LNG storage tank, do field observations indicate it is non-flammable? (DC.TANKS.NONMETALLINER.O) 193.2187 (193.2101(a);193.2301;193.2101(b)) 28. LNG Storage Tanks - Barriers Does the LNG tank design process require the material of construction for LNG storage tank liquid or vapor barriers shall be of metal classified for either “primary components” or “secondary components” in accordance with API Standard 620 (1990)? (DC.TANKS.BARRIER.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.3.3.6;API 620 (1990);193.2101(b);193.2017(b);193.2017(c);NFPA 59A (2001), Section 4.3.3.7) 29. LNG Storage Tanks - Barriers Do records (i.e., tank drawings and specifications) indicate that material of construction for nonstructural metallic barriers is selected from API 620 (1990), Appendix Q? (DC.TANKS.BARRIER.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.3.3.6;API 620 (1990);NFPA 59A (2001), Section 4.3.3.7;193.2101(b)) 30. LNG Storage Tanks - Metal Testing Does the design process for concrete LNG storage tanks require construction and testing of the metal components in accordance with API 620 (1990), Appendix Q? (DC.TANKS.METALTEST.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.3.4.3;API 620 (1990), Appendix Q;193.2101(b);193.2017(b);193.2017(c)) LNG.2023.01 Page 9 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 31. LNG Storage Tanks - Metal Testing Do the concrete LNG tank test records indicate metal components were constructed and tested in accordance with API 620 (1990), Appendix Q? (DC.TANKS.METALTEST.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.3.4.3;API 620 (1990), Appendix Q;193.2101(b)) 32. LNG Storage Tanks - Pressure & Vacuum Relief Devices (1) Does the LNG tank design process require pressure and vacuum relief devices in accordance with NFPA 59A (2001), Section 4.7? (DC.TANKS.PSV1.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.7;API 620;ASME BPVC, Section VIII;193.2101(b);193.2017(b);193.2017(c)) 33. LNG Storage Tanks - Pressure & Vacuum Relief Devices (1) Do records (i.e., pressure/vacuum relief valve data sheets) indicate that pressure and vacuum relief devices protecting the LNG storage tanks are in accordance with NFPA 59A (2001) Section 4.7? (DC.TANKS.PSV1.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.7;API 620;ASME BPVC, Section VIII;193.2101(b)) 34. LNG Storage Tanks - Pressure & Vacuum Relief Devices (2) Do records (i.e., tank drawings) indicate the pressure and vacuum relief valves vent directly to the atmosphere? (DC.TANKS.PSV2.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.7.2;193.2101(b)) 35. LNG Storage Tanks - Pressure & Vacuum Relief Devices (2) Do field observations confirm that the pressure and vacuum relief valves serving the LNG storage tanks are installed according to the design specifications? (DC.TANKS.PSV2.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.7) 36. LNG Storage Tanks - Pressure & Vacuum Relief Devices (3) Do records (i.e., P&IDs) indicate the isolation valves for LNG storage tank’s pressure and vacuum relief valves include a manual full-opening stop valve for testing or maintenance? (DC.TANKS.PSV3.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.7.2.1;193.2101(b)) 37. LNG Storage Tanks - Pressure & Vacuum Relief Devices (3) Do field observations confirm that isolation valves for the LNG storage tank’s pressure and vacuum relief valves are installed according to the design? (DC.TANKS.PSV3.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.7.2.1) 38. LNG Storage Tanks - Pressure & Vacuum Relief Devices (4) Do records (i.e., tank drawings; P&IDs) indicate that safety relief valves discharge vertically upward? (DC.TANKS.PSV4.R) 193.2101 (193.2301;NFPA 59A (2001), Section 4.7.2.3) LNG.2023.01 Page 10 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 39. LNG Storage Tanks - Pressure & Vacuum Relief Devices (4) Do field observations confirm that LNG storage tank’s safety relief valves are installed according to design, including measures to prevent an accumulation of water, ice, snow, or other foreign matter? (DC.TANKS.PSV4.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.7.2.3) 40. LNG Storage Tanks - Pressure Relief Devices (5) Does the LNG storage tank design process require pressure relief devices to be sized in accordance with NFPA 59A (2001), Sections 4.7.3.1, 4.7.3.2, and 4.7.3.4? (DC.TANKS.PSV5.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.7.3;193.2101(b);193.2017(b);193.2017(c)) 41. LNG Storage Tanks - Pressure Relief Devices (5) Do records (i.e., calculation sheets for LNG Storage Tank Relief Valve Capacity) indicate the flow capacity of pressure relief valves was calculated in accordance with NFPA 59A (2001) Section 4.7.3.1, 4.7.3.2, and 4.7.3.4? (DC.TANKS.PSV5.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.7.3;193.2101(b)) 42. LNG Storage Tanks - Vacuum Relief Devices Does the LNG storage tank design specification require vacuum relief devices to be sized in accordance with NFPA 59A (2001) Section 4.7.3.3? (DC.TANKS.VRV.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.7.3.3;193.2101(b);193.2017(b);193.2017(c)) 43. LNG Storage Tanks - Vacuum Relief Devices Do records (i.e., calculation sheets for LNG storage tank relief valve capacity) indicate the flow capacity of vacuum relief valves was calculated in accordance with NFPA 59A (2001) Section 4.7.3.3? (DC.TANKS.VRV.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.7.3.3;193.2101(b)) 44. LNG Storage Tanks - Vacuum Relief Devices Do field observations confirm that LNG storage tank vacuum relief valves were installed according to design specifications? (DC.TANKS.VRV.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.7.3.3) 45. LNG Storage Container - Liquid Level Gauges Does the design process require two independent liquid level gauges in LNG containers? (DC.TANKS.LEVELGAUGES.P) 193.2101(a) (193.2017;NFPA 59A (2001), Section 7.1.1;193.2101(b)) 46. LNG Storage Container - Liquid Level Gauges Do records indicate that two liquid level gauges for LNG containers were designed and installed in accordance with NFPA 59A (2001), Section 7.1.1? (DC.TANKS.LEVELGAUGES.R) 193.2301 (193.2101(a);193.2303;NFPA 59A (2001), Section 7.1.1;193.2101(b)) 47. LNG Storage Container - Liquid Level Gauges Do field observations confirm that two independent liquid level gauges are installed in the LNG containers to design specifications? (DC.TANKS.LEVELGAUGES.O) 193.2301 (193.2303;NFPA 59A (2001), Section 7.1.1) LNG.2023.01 Page 11 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 48. LNG Storage Container - Pressure Gauges Does the design process require the installation of a pressure gauge connected to each storage container at a point above the maximum intended liquid level? (DC.TANKS.PRESSGAUGES.P) 193.2301 (193.2017(a);193.2401;NFPA 59A (2001), Section 7.2;193.2017(b);193.2017(c)) 49. LNG Storage Container - Pressure Gauges Do records (e.g., P&IDs) indicate the installation of a pressure gauge connected to each storage container at a point above the maximum intended liquid level? (DC.TANKS.PRESSGAUGES.R) 193.2301 (193.2401;193.2101(a);NFPA 59A (2001), Section 7.2;193.2101(b)) 50. LNG Storage Container - Pressure Gauges Do field observations confirm the installation of a pressure gauge connected to each storage container at a point above the maximum intended liquid level? (DC.TANKS.PRESSGAUGES.O) 193.2301 (193.2303;193.2401;NFPA 59A (2001), Section 7.2) 51. LNG Storage Container - Temperature Monitoring Does the LNG storage container design require temperature monitoring equipment to be installed? (DC.TANKS.TEMPMONITOR.P) 193.2301 (193.2017(a);NFPA 59A (2001), Section 7.4;193.2017(b);193.2017(c)) 52. LNG Storage Container - Temperature Monitoring Do records indicate that temperature monitoring was installed in accordance with design specifications? (DC.TANKS.TEMPMONITOR.R) 193.2301 (193.2101(a);NFPA 59A (2001), Section 7.4;193.2101(b)) 53. LNG Storage Container - Temperature Monitoring Do field observations confirm that temperature monitoring devices were installed in accordance with design specifications? (DC.TANKS.TEMPMONITOR.O) 193.2301 (193.2303;NFPA 59A (2001), Section 7.4) 54. Electrical Grounding and Bonding for Storage Tanks Does the design process for electrical grounding and bonding for storage tanks meet the requirements of NFPA 59A (2001), Section 7.7? (DC.TANKS.GROUNDING.P) 193.2301 (193.2017(a);NFPA 59A (2001), Section 7.7;193.2017(b);193.2017(c)) 55. Electrical Grounding and Bonding for Storage Tanks Do records indicate that electrical grounding and bonding for storage tanks were designed and installed IAW NFPA 59A (2001), Section 7.7? (DC.TANKS.GROUNDING.R) 193.2301 (193.2101;NFPA 59A (2001), Section 7.7) 56. Electrical Grounding and Bonding for Storage Tanks Do field observations confirm electrical grounding and bonding for storage tanks was installed IAW the design specifications? (DC.TANKS.GROUNDING.O) 193.2301 (193.2303;NFPA 59A (2001), Section 7.7) LNG.2023.01 Page 12 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 57. LNG Storage Containers - Weld NDT Do the tank design specifications require that non-destructive examinations of welds on metal storage containers be performed in accordance with NFPA 59A (2006), Section 7.3.1.2, and API 620 (2008, 11th Edition), Appendices C and Q (per 193.2321(b))? (DC.TANKS.NDT.P) 193.2321(b) (193.2017(a);NFPA 59A (2006), Section 7.3.1.2;API 620 (2008), Appendix C;API 620 (2008), Appendix Q;193.2017(b);193.2017(c)) 58. LNG Storage Containers - Weld NDT Do records indicate that non-destructive examinations of welds on metal storage containers were performed in accordance with NFPA 59A (2006), Section 7.3.1.2, and API 620 (2008, 11th Edition), Appendices C and Q (per 193.2321b)? (DC.TANKS.NDT.R) 193.2321(b) (193.2101(a);193.2301;NFPA 59A (2006), Section 7.3.1.2;API 620 (2008), Appendix C;API 620 (2008), Appendix Q;193.2101(b)) 59. LNG Storage Containers - Weld NDT Do field observation confirm that non-destructive examinations of welds on metal storage containers were performed in accordance with NFPA 59A (2006), Section 7.3.1.2, and API 620 (2008, 11th Edition), Appendices C and Q (per 193.2321b)? (DC.TANKS.NDT.O) 193.2321(b) (193.2303;NFPA 59A (2006), Section 7.3.1.2;API 620 (2008), Appendix C;API 620 (2008), Appendix Q) 60. Installation of Flammable Refrigerant and Process Fluids Storage Tanks Does the process for the installation of flammable refrigerants and flammable liquid storage require compliance with NFPA 30, NFPA 58, NFPA 59, API 2510? (DC.TANKS.FLAMMFLUIDS.P) 193.2101(a) (193.2017(a);NFPA 59A (2001) Section 3.3;NFPA 30;NFPA 58;NFPA 59;API 2510;193.2101(b);193.2017(b);193.2017(c)) 61. Installation of Flammable Refrigerant and Process Fluids Storage Tanks Do records indicate that installation of storage tanks for flammable refrigerants and process fluids is in accordance with design and installation specifications? (DC.TANKS.FLAMMFLUIDS.R) 193.2101(a) (193.2303;NFPA 59A (2001) Section 3.3;NFPA 30;NFPA 58;NFPA 59;API 2510;193.2101(b)) 62. Part 193 Materials Records for Tanks Does the process require records of all materials for tanks and tank related components be maintained for the life of the item? (DC.TANKS.MATERIALRECORDS.P) 193.2119 (193.2017(a);193.2017(b);193.2017(c)) 63. Part 193 Materials Records for Tanks Have records of all materials for tanks and tank related components been kept to verify that materials properties have met the requirements of Part 193, and are the records being maintained for the life of the item concerned? (DC.TANKS.MATERIALRECORDS.R) 193.2119 (193.2101(a);193.2101(b)) 64. LNG Storage Tanks - Leak Testing Does the LNG storage tank design process require leak testing of LNG storage tanks in accordance with API 620 (1990), Appendix Q.8? (DC.TANKS.LEAKTESTING.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.5.1;API 620 (1990), Appendix Q;193.2101(b);193.2017(b);193.2017(c)) LNG.2023.01 Page 13 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 65. LNG Storage Tanks - Leak Testing Do the LNG tank test records indicate that LNG storage tanks were tested in accordance with API 620 (1990), Appendix Q? (DC.TANKS.LEAKTESTING.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.5.1;API 620 (1990), Appendix Q;193.2101(b)) 66. LNG Storage Tanks - Leak Testing Do field observations verify that the hydrostatic test and pneumatic pressure test for LNG storage tanks were performed according to test procedures? (DC.TANKS.LEAKTESTING.O) 193.2301 (193.2303;NFPA 59A (2001), Section 4.5.1;API 620 (1990), Appendix Q) 67. Cooldown of Components Does the process require that the thermal stress of components be kept within design limits during cooldown? (MO.LO.COOLDOWN.P) 193.2017 (193.2503(g);193.2505(a);193.2505(b)) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 68. Cooldown of Components Do records indicate that cooldown of components was maintained within design limits? (MO.LO.COOLDOWN.R) 193.2505(a) (193.2505(b);193.2503(g);193.2101;193.2301) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 69. Cooldown of Components Do field observations confirm leak checks were performed on components subject to cryogenic temperatures following stabilization? (MO.LO.COOLDOWN.O) 193.2505(b) (193.2301;193.2303) Note: this question is presented in multiple places so you will see multiple instances of it on this report. Design and Construction - Structures 1. Design for Wind Forces Does the design processes specify the wind force requirements for the LNG facility comply with 193.2067? (DC.STRUCTURE.WINDFORCES.P) 193.2067(a) (193.2017(a);193.2051;193.2067(b);193.2017(b);193.2017(c)) 2. Design for Wind Forces Do records (e.g., design specifications) indicate that the wind forces specified for the LNG facility comply with 193.2067? (DC.STRUCTURE.WINDFORCES.R) 193.2067(a) (193.2051;193.2101(a);193.2067(b);193.2101(b)) LNG.2023.01 Page 14 of 78 <<>> PHMSA - LNG - LNG.2023.01 IA Question Set - January 2023 3. Storage Tanks & Structures - Wind and Snow Load Design Does the design process for LNG storage tanks and structures include design for wind and snow loads to meet requirements of NFPA 59A (2001), Sections 4.1.4, and ASCE 7? (DC.TANKS.WINDSNOWDES.P) 193.2101(a) (193.2017(a);NFPA 59A (2001), Section 4.1.4;ASCE 7;193.2101(b);193.2017(b);193.2017(c)) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 4. Storage Tanks & Structures - Wind and Snow Load Design Do records (e.g., design drawings, specifications, and calculations) indicate that LNG storage tanks and/or structures were constructed in accordance with the wind and snow load requirements in NFPA 59A (2001), Section 4.1.4, and ASCE 7? (DC.TANKS.WINDSNOWDES.R) 193.2101(a) (193.2301;NFPA 59A (2001), Section 4.1.4;ASCE 7;193.2101(b)) Note: this question is presented in multiple places so you will see multiple instances of it on this report. 5. Geotechnical and Soils Investigations Does the design process require geotechnical (soils) investigations of the facility site? (DC.STRUCTURE.GEOTECH.P) 193.2101(a) (193.2017(a);193.2401;NFPA 59A (2001), Section 2.1.4;193.2101(b);193.2017(b);193.2017(c)) 6. Geotechnical and Soils Investigations Do records indicate that geotechnical (soil) investigation results of the soil conditions for the site were used in the design basis for the facility? (DC.STRUCTURE.GEOTECH.R) 193.2101(a) (193.2301;193.2401;NFPA 59A (2001), Section 2.1.4;193.2101(b)) 7. Materials of Construction Does the design process require buildings or structural enclosures in which LNG, flammable refrigerants, and flammable gases are handled to be of lightweight, non-combustible construction materials with non−load bearing walls? (DC.STRUCTURE.MATERIALS.P) 193.2301 (193.2017(a);NFPA 59A (2001), Section 2.3.1;193.2017(b);193.2017(c)) 8. Materials of Construction Do records indicate buildings or structural enclosures in which LNG, flammable refrigerants, and flammable gases are handled are built of lightweight, non-combustible construction materials with non−load bearing walls? (DC.STRUCTURE.MATERIALS.R) 193.2301 (193.2101(a);NFPA 59A (2001), Section 2.3.1;193.2101(b)) 9. Materials of Construction Do field observations verify buildings or structural enclosures in which LNG, flammable refrigerants, and flammable gases are handled have been constructed in accordance with the design specifications? 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