# Regulus search export - Query: `63 FR 37505` - Source type: All - Part: All - Source: All - Status: All - Jurisdiction: All - Collection: All - Incident class: All - Sort: relevance - Date from: Any - Date to: Any - As of: Current corpus - Results: 9 - Exported: 2026-08-24T02:13:04.195Z ## 1. Storage tank tests. **Citation:** 49 CFR 193.2327 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) In addition to other applicable requirements of this subpart, storage tanks for cryogenic fluids with internal design pressures of not more than 15 psi (103 kPa) gage must be tested in accordance with sections Q8, Q9, and Q10 of API 620, appendix Q, as applicable. (b) Metal storage tanks for cr ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `e3685292516f0044095c899032d70b5e7b589c63c4e993489d568febf79a0179` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2327` - Related records: 3 ## 2. Classes of impounding systems. **Citation:** 49 CFR 193.2153 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) For the purpose of this part, impounding systems are classified as follows: Class 1. A system which surrounds the component served with the inner surface of the dike constructed against or within 24 inches (610 millimeters) of the component served. Class 2. A system which surrounds the componen ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `d70c1ffca6dea7233a6e805989a9c085be9d541f5a735e4758157abbb5f51d14` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2153` - Related records: 4 ## 3. Shutoff valves. **Citation:** 49 CFR 193.2233 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) Shutoff valves on transfer systems must be located— (1) On each liquid supply line, or common line to multiple supply lines, to a storage tank, or to a cargo transfer system; (2) On each vapor or liquid return line from multiple return lines, used in a cargo transfer system; (3) At the connec ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `aaa0ab90645a1edd77d7c4cb785b8e7560c097df3d74a7f782b8e3cefce32c09` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2233` - Related records: 5 ## 4. Metal storage tanks. **Citation:** 49 CFR 193.2211 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) Metal storage tanks with internal design pressures of not more than 15 psi (103 kPa) gage must be designed and constructed in accordance with API Standard 620 and, where applicable, appendix Q of that standard. (b) Metal storage tanks with internal design pressures above 15 psi (103 kPa) gage m ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `8d976ffd7f139468cdeea6033d1b1b7b1c489b52107b1991ac8541063015ac4d` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2211` - Related records: 4 ## 5. Penetrations. **Citation:** 49 CFR 193.2195 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) All penetrations in an LNG storage tank must be designed in accordance with API 620, including appendix Q. (b) The loadings on all penetrations must be determined by an analysis of all contributing forces, including those from tank thermal movements, connecting piping thermal movements, hydraul ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `d087c2fe178a8b9d55b7e8049df0a48a9dabad834989e3e7456ff54193816fd5` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2195` - Related records: 2 ## 6. Stratification. **Citation:** 49 CFR 193.2191 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated LNG storage tanks with a capacity of 5,000 barrels (795 cubic meters) or more must be equipped with means to mitigate a potential for rollover and overpressure such as: (a) Selective filling at the top and bottom of the tank; (b) Circulating liquid from the bottom to the top of the same tank; or ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `9564f4b9da5c43b5a723ac655c42d437d42c9773fd52f67b074855aaadbcd45b` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2191` - Related records: 4 ## 7. Buildings: ventilation. **Citation:** 49 CFR 193.2133 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) Each building in which potentially hazardous quantities of flammable fluids are handled must be ventilated to minimize the possibility, during normal operation, of hazardous accumulation of a flammable gas and air mixture, hazardous products of combustion, and other hazardous vapors in enclosed ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `8cbe556ac688cbf1d071d0a5bef0b91a374624ece0713c3ccffd03ffd7715d32` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2133` - Related records: 2 ## 8. Instrumentation for LNG storage tanks. **Citation:** 49 CFR 193.2209 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) Each LNG storage tank having a capacity over 70,000 gallons (265,000 liters) must be equipped with a sufficient number of sensing devices and personnel warning devices, as prescribed, which operate continuously while the tank is in operation to assure that each of the following conditions is not ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `8e95dd4f9c60e79601c460c652c3bafd0302f1c415fa7985bc6b9c036a85e180` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2209` - Related records: 4 ## 9. Seismic investigation and design forces. **Citation:** 49 CFR 193.2061 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 1999-10-01 / Not stated (a) Except for shop fabricated storage tanks of 70,000 gallons (265,000 liters) or less capacity mounted within 2 feet of the ground, if an LNG facility is located at a site in Zone 0 or 1 of the “Seismic Risk Map of the United States,” UBC, each operator shall determine, based on a study of faults, ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `f59ec4332f793d324ad2f529fa2376e0897840ef56108243f1ee4e359904c975` - Retrieved: 2026-08-12T01:41:23.231Z - Document slug: `49-cfr-193-2061` - Related records: 4