# Regulus search export - Query: `55 FR 52716` - 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: 38 - Exported: 2026-08-22T19:32:10.322Z ## 1. Tests. **Citation:** 49 CFR 178.364-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated \[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-97, 55 FR 52716, Dec ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `dc0b9437a831826d2dc9cf63505bcb41a6a4116f9771a9f7efe506a124ce46b0` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-364-4` - Related records: 0 ## 2. Required marking. **Citation:** 49 CFR 178.364-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (2) \[Reserved\] \[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990, as amended at ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `afc824c90fc2b757e519c614aea5e4b1fe3159bf0c902ded2cdf9ff4c50866ba` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-364-5` - Related records: 0 ## 3. Rated capacity. **Citation:** 49 CFR 178.354-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (b) \[Reserved\] \[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990, as a ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `83d1b87f58880996d648586078f41e7b1a0ba846940c221504a2d039fd61774e` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-354-2` - Related records: 0 ## 4. Typical assembly detail. **Citation:** 49 CFR 178.364-6 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated EC02MR91.085 \[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974; 40 FR 2435, Jan. 31, 1975. Redesigntated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `41c4955f61618d325e28dca8c4812b51a2dd78bd0796f944ed45e1f225973f7e` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-364-6` - Related records: 0 ## 5. Typical assembly sketches. **Citation:** 49 CFR 178.362-7 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated EC02MR91.084 \[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974; 40 FR 2435, Jan. 13, 1975. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `3eb9a999b04f918c88b71b9a37b71da224dd275790d035d76967423e8a1efb1e` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-7` - Related records: 0 ## 6. General requirements. **Citation:** 49 CFR 178.352-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated \[Amdt. 178-35, 39 FR 45246. Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `3299ca1ec641bf7f6ddb0516e4f023feb2c9d6d6bdbac122856de18dd4749e47` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-1` - Related records: 0 ## 7. General requirements. **Citation:** 49 CFR 178.354-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (b) \[Reserved\] \[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `de2ad886038d5262a316f2a0f715b0adad0dd3bfe516c401511e1bdc04505232` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-354-1` - Related records: 0 ## 8. Typical assembly detail. **Citation:** 49 CFR 178.356-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated EC02MR91.079 \[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `4968530172bd3bcf137d81ea2a7eed3a67b2bc10ddf719dc3aa964b568a01cb0` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-356-5` - Related records: 0 ## 9. Painting. **Citation:** 49 CFR 178.362-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated \[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990\] ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `b99013d25142b03bfaaba3a821fa1d334b3cfd1e45144c4eabab856f22342c5e` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-5` - Related records: 0 ## 10. Dimensions. **Citation:** 49 CFR 178.360-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) The inside diameter of the vessel may not exceed 30 cm (12 inches) exclusive of flanges for handling or fastening devices and must have wall thickness and length in accordance with the following: Inside diameter maximum Inches Cm Threaded closure Inches Mm Wall thickness minimum—Flanged closure ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `45ae2842785355074c9d09453ef778e687dd54d05a6d2c50b3e4bfd84930fc87` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-360-3` - Related records: 0 ## 11. Marking. **Citation:** 49 CFR 178.362-6 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) Each jacket must be marked on the external surface as follows: “USA-DOT 20WC-() TYPE B.” The appropriate numeral must be inserted in the marking to indicate the appropriate specification 20WC category: e.g., “20WC-2.” (b) Each jacket must also be marked with the name or symbol of person making ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `88d65adbeef2ef50d5262325dc7e41ddca698b6e2efd2be27489a0748557e069` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-6` - Related records: 0 ## 12. Tests. **Citation:** 49 CFR 178.356-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Leakage test—Each inner liner assembly must be tested for leakage prior to installation. Seam welds of the liner must be covered for a distance of at least 15 cm (6 inches) on either side of the seam with soapsuds, heavy oil, or equivalent material, and interior air pressure applied to at least ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `0778750a1f28dbf344af19c3d15adf1a1353c8ac71573e309847df20ed611e45` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-356-3` - Related records: 0 ## 13. Rated capacity. **Citation:** 49 CFR 178.352-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated Not less than 55 gallons nor more than 110 gallons for the outer steel drum. Not more than 17.74 L for the inner vessel. (b) The authorized maximum gross weight of the package is 160 kg (350 pounds) for sizes not over 210 L (55 gallons) or 220 kg (480 ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `a602fcb6fd8f62d1be91368852e3f39b036975db9c8bf5f54db64534d3268efb` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-2` - Related records: 0 ## 14. Markings. **Citation:** 49 CFR 178.354-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) Marking must be as prescribed in § 178.3. (b) Marking on the outside of each package must be as follows: “DOT-6M Type B,” “Radioactive Materials,” or “Fissile Radioactive Materials,” as appropriate; and the gauge of metal of the outer drum in the thinnest part, rated capacity of the outer drum ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `b07d0eb5cc57a57e164f3b1aed0a09e4b6ac8a5586b4031bb3b6dbb104941a56` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-354-5` - Related records: 0 ## 15. Manufacture. **Citation:** 49 CFR 178.360-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated \[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974. Redesignated by Amdt. ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `23191788ebc1bf5513f425382310ba8352572047baac59384d3b5919538f92f7` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-360-2` - Related records: 0 ## 16. General requirements. **Citation:** 49 CFR 178.364-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated \[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesignated by Amdt. 178-9 ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `ec73e792750c1af67fe1bb2b59b4b1dfa079824cf7c40b75f9221c89b113ac08` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-364-1` - Related records: 0 ## 17. Tests. **Citation:** 49 CFR 178.362-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated Prior to each use, each jacket must be visually inspected for defects such as improper bonding, cracking, corrosion of steel rods, and improperly fitting closure lid, or other manufacturing defects. Particular attention must be given to any separation of the plywood discs and rings which would provi ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `8d4d62782cba272bbf2add1b4956e69e0f8e9e9394b39f9419ec5841993fcc80` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-4` - Related records: 0 ## 18. Closure. **Citation:** 49 CFR 178.362-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) Closure for the wooden protective jacket is provided by the steel reinforcing rods. The end cap (lid) must fit tightly to the body of the jacket to prevent a heat path to the inside of the jacket. The lid joint for specifications 20WC-3, 20WC-4, 20WC-5, and 20WC-6, may not be coplanar with the e ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `b9ffa0f91e3d350fcd5e9526e553a92a718cd19f425e57c542018e6b8dc85d5d` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-3` - Related records: 0 ## 19. Welding. **Citation:** 49 CFR 178.352-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated Welding must be of material having a melting point in excess of 800 °C (1475 °F) (except that for packages constructed prior to March 31, 1975, this temperature may be 540 °C (1000 °F)), with a joint efficiency of at least 0.85. This requirement applies to welding used in adding spacer rods to compl ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `e1e47656640e94f4d98772dcbe77fd8d6e0959df490bffda4a56825f8c88ed5f` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-4` - Related records: 0 ## 20. General requirements. **Citation:** 49 CFR 178.362-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) Each jacket must meet the applicable requirements of § 173.24 of this subchapter. (b) Maximum gross weight of the jacket plus the contents may not exceed the following: (1) Specification 20WC-1: 225 kg (500 pounds). (2) Specification 20WC-2: 225 kg (500 pounds). (3) Specification 20WC-3: 455 ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `738b93b15714590b2d3e7aeaa586b7b6c2757bfab7272d0bc86b47f4498cbbd3` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-1` - Related records: 0 ## 21. Closure. **Citation:** 49 CFR 178.352-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The outer drum closure must be at least a 12-gauge bolted ring with drop forged lugs, one of which is threaded, and having at least a 1.6 centimeter (5/8-inch) diameter steel bolt and a lock nut, or equivalent device. (b) The closure device must have a means for the attachment of a tamper-proof ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `20fcaf559b7dda59b16bbd624a1d3f497c3b212382d1dbd82f1ed697c11b13bd` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-5` - Related records: 0 ## 22. General requirements. **Citation:** 49 CFR 178.360-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Each vessel must be made of stainless steel, malleable iron, or brass, or other material having equivalent physical strength and fire resistance. (b) Each vessel must meet all of the applicable requirements of § 173.24 (c) and (d) of this subchapter. Letters and numerals at least 6 mm (1/4-inch ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `a409931929147a4d040294e6d6d107d0df779f7af3aef8dccf11804e2405fa08` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-360-1` - Related records: 0 ## 23. Required markings. **Citation:** 49 CFR 178.356-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Marking must be as prescribed in § 178.3. (b) Marking on the outside of each overpack must be as follows: (1) “USA-DOT-20PF-1” or “-2,” as appropriate, and if the entire liner is made of stainless steel, additional marking such as “3041-SS” to indicate the type of stainless steel used. (2) “T ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `0682b491cf2b34a5e3acea7628552db37ba187a0aeda9badeabc4f03aaa5a3a7` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-356-4` - Related records: 0 ## 24. Construction of Specification 21PF-1B overpacks. **Citation:** 49 CFR 178.358-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Each Specification 21PF-1 overpack for which construction began after March 31, 1989, must meet the requirements of Specification 21PF-1B, in conformance with drawings E-S-31536-J-P, and S1E-31536-J2-B of DOE CAPE-1662, Rev. 1, Supplement 1 (IBR, see § 171.7 of this subchapter). (b) With the ex ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `0ce2179fba1afd4b6315f969f49c5c91c44c459520eb5b49508e991818f21dc8` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-4` - Related records: 0 ## 25. Closure. **Citation:** 49 CFR 178.354-4 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The outer drum closure must be at least 16-gauge bolt-type locking ring having at least a 5/16-inch steel bolt for drum sizes not over 15 gallons, or a 12-gauge bolted ring with drop-forged lugs, one of which is threaded, and a 5/8-inch steel bolt for drum sizes over 15 gallons. Each bolt must b ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `8c85e0007f9aae89792fb39ffceaced6ccc71a3247fb923d1cc8141ecbf4d539` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-354-4` - Related records: 0 ## 26. Markings. **Citation:** 49 CFR 178.352-6 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) Markings on each container, by die stamping on a metal plate attached to the outside of the outer container by spot welding, or other equally efficient method, in letters and figures of at least one-fourth inch in height, as follows: (1) “DOT-6L”. (2) “FISSILE RADIOACTIVE MATERIAL.” (3) Name ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `f06ad0fe0016d52b4844c7d62349d7840dd696244b4f9c1fd8e682eea9f968be` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-6` - Related records: 0 ## 27. Typical assembly detail. **Citation:** 49 CFR 178.358-6 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated EC02MR91.082 \[Amdt. 178-90, 53 FR 36552, Sept. 20, 1988. Redesignated by Amdt. 178-97, 55 FR 5 ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `b725c410ba5f6ecf9d7c5f4d041d24939c6aeb694b07fac06ddbfa2ddebb4d85` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-6` - Related records: 0 ## 28. Materials of construction and other requirements. **Citation:** 49 CFR 178.364-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The general configuration of the protective overpack must be a combination of two nested plywood boxes, each 2.5 cm (1 inch) thick, nested within a third wooden box of nominal 5 cm (2-inch) thickness solid hardwood. The three nested boxes must be enclosed within a welded framework 10 cement-coat ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `a1dab08f269ee6d054738767726dc2c391c710ff43bb65b2dafa08f60b8f6912` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-364-2` - Related records: 0 ## 29. Required markings. **Citation:** 49 CFR 178.358-5 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Markings must be as prescribed in § 178.3. (b) Specification marking on the outside of each overpack must be as follows: “USA-DOT-21PF-1”, “1A”, “1B”, or “2”, as appropriate. (1) For Specifications 21PF-1 and 21PF-2 only, if the inner shell is constructed of stainless steel, additional marking ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `4e0b248b2422c053ddbfcced1f7741e5ba44d26ef39c37d31bc73316121a1670` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-5` - Related records: 0 ## 30. General requirements. **Citation:** 49 CFR 178.356-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Each overpack must meet all of the applicable requirements of § 173.24 of this subchapter. (b) The maximum gross weight of the package, including the inner cylinder and its contents, must not exceed the following: (1) Specification 20PF-1—138 kg (300 pounds). (2) Specification 20PF-2—320 kg ( ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `e93909747f76de6125ee50c3899cad7ca73a246f422b636fbe20e2541018d207` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-356-1` - Related records: 0 ## 31. General requirements. **Citation:** 49 CFR 178.358-1 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Each overpack must meet all of the applicable requirements of §§ 173.24, 173.411, and 173.412 of this subchapter. (1) Specification 21PF-1 overpacks includes the series of 21PF-1, 21PF-1A, and 21PF-1B models. Details of the three models are included in DOE CAPE-1662, Rev. 1 and Supplement 1 (IB ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `de4acee97434fd669aef31af1f5ca634bfd706d2bac63718cd98ef1e483d10fe` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-1` - Related records: 0 ## 32. Materials of construction and other requirements. **Citation:** 49 CFR 178.358-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Phenolic foam insulation must be fire resistant and fabricated in accordance with USDOE Material and Equipment Specification SP-9, Rev. 1 and Supplement (IBR, see § 171.7 of this subchapter), which is a part of this specification. (Note: Packagings manufactured under USAEC Specification SP-9, an ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `99d66daf371ae3ff78b0fb309261cc1a379e734c0034da8e5477662e5cd95656` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-2` - Related records: 0 ## 33. Modification of Specification 21PF-1 overpacks. **Citation:** 49 CFR 178.358-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Each Specification 21PF-1 overpack for which construction began or was completed before April 1, 1989, in conformance with drawing E-S-31536-J, Rev. 1 of DOE CAPE-1662 (IBR, see § 171.7 of this subchapter), must be modified in conformance with drawing S1E-31536-J1-D of DOE CAPE-1662, Rev. 1, Sup ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `50d9cc425fbaa4ea162b96dcb407e73ee857cd3f6f4359441a032aa8df596c63` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-358-3` - Related records: 0 ## 34. Materials of construction and other requirements. **Citation:** 49 CFR 178.356-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2013-10-01 / Not stated (a) Phenolic foam insulation must be fire-resistant and fabricated in accordance with USDOE Material and Equipment Specification SP-9, Rev. 1 and Supplement (IBR, see § 171.7 of this subchapter), which is a part of this specification. (Note: Packagings manufactured under USAEC Specification SP-9 and ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `4065381ce726a8b7ec4112ad02faa5b3afd121a4e38be564d38709ddb4b7d0d2` - Retrieved: 2026-08-12T01:41:52.959Z - Document slug: `49-cfr-178-356-2` - Related records: 0 ## 35. General construction requirements. **Citation:** 49 CFR 178.354-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The outer shell must be of straight-sided steel, with welded body seams, and may be either a single sheet of steel, or may be fabricated by welding together two appropriate lengths of drums with each length to contain 3 swedged or rolled rolling hoops as prescribed for either of these specificat ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `990afd363036840076321af3e55c28396e632054e008104fecd083a3dc5ce6e2` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-354-3` - Related records: 0 ## 36. Materials of construction. **Citation:** 49 CFR 178.362-2 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The general configuration of the wooden protective jacket must be a hollow cylindrical shell constructed of one-piece discs and rings of plywood or solid hardwood reinforced with steel rods. (1) The specification 20WC-2 must be additionally completely encased, snugly fit, within an 18-gauge ste ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `384392034ec7a4930ec7571294db3044dd0731fea602ee32bbfcce0f526c61b9` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-362-2` - Related records: 0 ## 37. Pressure and vacuum relief devices. **Citation:** 49 CFR 178.270-11 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2005-10-01 / Not stated (a) Relief devices required. Each portable tank, or each independent compartment of a portable tank, must be fitted with pressure relief devices in accordance with the following: (1) Each portable tank, or each independent compartment of a portable tank, with a capacity of more than 1893 L (500 gal ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `b28e5764462d24f32b62fa34ac2916b84c3c66da33efa04ec0ff04a2a877c1e7` - Retrieved: 2026-08-13T06:37:34.028Z - Document slug: `49-cfr-178-270-11` - Related records: 0 ## 38. General construction requirements. **Citation:** 49 CFR 178.352-3 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2003-10-01 / Not stated (a) The outer shell must be of straight sided steel, with welded body seams and at least 18-gauge body and bottom head sheets, and 14-gauge removable head sheets (unless there are one or more corrugations in the cover near the periphery, in which case 16-gauge is authorized). The shell may be either ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `a354b9a45c94647d48031d570d0c403efa5d6351f294c5bdbf982e6a8d558e73` - Retrieved: 2026-08-13T06:37:29.399Z - Document slug: `49-cfr-178-352-3` - Related records: 0