# Regulus search export - Query: `4 FR 172` - 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: 10 - Exported: 2026-08-23T17:56:57.011Z ## 1. Purpose and applicability. **Citation:** 49 CFR 172.800 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49332, Aug. 4, 2026. (a) Purpose. This subpart prescribes requirements for development and implementation of plans to address security risks related to the transportation of hazardous materials in commerce. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `df07f80ccf70a3bb613504b1cd2c01ee28fd01c1c4584d310d626bc5b4ccbf41` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-800` - Related records: 87 ## 2. General placarding requirements. **Citation:** 49 CFR 172.504 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49339, Aug. 4, 2026. (a) General. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `9c9ab02971eaa1ff5c5211ee9995258a388367c44d1b55fa54bc10c476857b2e` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-504` - Related records: 296 ## 3. Emergency response information. **Citation:** 49 CFR 172.602 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49329, Aug. 4, 2026. (a) Information required. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `6f66d3edf348f7d6daf1b3e5053e502a75e06c4a0d817ed42f7a3690fdae2853` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-602` - Related records: 109 ## 4. Limited quantities. **Citation:** 49 CFR 172.315 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49335, Aug. 4, 2026. (a) Modes other than air transport. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `5e343808a8d5c47b81ea8473165135550c3b3569768142e3ea7458dbf11d002a` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-315` - Related records: 119 ## 5. Purpose and use of the hazardous materials table. **Citation:** 49 CFR 172.101 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49310, Aug. 4, 2026. Link to an amendment published at 91 FR 51103, Aug. 7, 2026. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `f353780efcd496877efddfcc20c2fd6f25fd30e1e6f8e29985f377d04dd47623` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-101` - Related records: 1510 ## 6. Definitions and abbreviations. **Citation:** 49 CFR 171.8 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49305, Aug. 4, 2026. Link to an amendment published at 91 FR 49310, Aug. 4, 2026. Link to an amendment published at 91 FR 51102, Aug. 7, 2026. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `91219de62bb956e102edcb624737015c146e8d48aa4216452314a0e4eedc8a2d` - Retrieved: 2026-08-20T05:45:53.607Z - Document slug: `49-cfr-171-8` - Related records: 1180 ## 7. Special provisions. **Citation:** 49 CFR 172.102 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 51103, Aug. 7, 2026. (a) General. When column 7 of the ยง 172.101 table refers to a special provision for a hazardous material, the meaning and requirements of that provision are as set forth in this section. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `4bb717fc989e8485f0915581ff465dcdc6e371d23a53e573e86f1132fe142af0` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-102` - Related records: 563 ## 8. Bulk packagings other than portable tanks, cargo tanks, tank cars and multi-unit tank car tanks. **Citation:** 49 CFR 172.331 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49339, Aug. 4, 2026. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `510d723b0e76efe943ef4e4550bb79a35caedf52e42f13d687b219a6e0eb23eb` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-331` - Related records: 51 ## 9. Bulk packagings. **Citation:** 49 CFR 172.514 **Type / status:** regulation / current **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2026-08-18 / Not stated Link to an amendment published at 91 FR 49339, Aug. 4, 2026. ### Provenance - Official: Yes - Source: - Source ID: `ecfr` - SHA-256: `f4de50b4390ef6cc9c3f5690655fe87cf459bf08843f6f8979ad06fb2e50dbf8` - Retrieved: 2026-08-20T05:45:59.130Z - Document slug: `49-cfr-172-514` - Related records: 73 ## 10. Air eligibility mark. **Citation:** 49 CFR 172.321 **Type / status:** regulation / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective / published:** 2004-10-01 / Not stated (a) General. Except as otherwise specified in this subchapter, each person who offers for transportation by aircraft a hazardous material in a non-bulk package must mark the package as required by this section to indicate that it meets the applicable requirements for air transport. The marking is a ### Provenance - Official: Yes - Source: - Source ID: `govinfo-cfr` - SHA-256: `d1ed5e4f89f9e88a902d18ce2c8ebed85525979898842cd49b8970da660c2642` - Retrieved: 2026-08-13T06:37:31.780Z - Document slug: `49-cfr-172-321` - Related records: 6