PHMSA - Interpretations by Regulation

Interpretations	Title
49 CFR 171.1	Purpose and scope (eCFR Regulation)
49 CFR 171.2	General requirements (eCFR Regulation)
49 CFR 171.3	Hazardous waste (eCFR Regulation)
49 CFR 171.4	Marine pollutants (eCFR Regulation)
49 CFR 171.6	Control numbers under the Paperwork Reduction Act (eCFR Regulation)
49 CFR 171.7	Reference material (eCFR Regulation)
49 CFR 171.8	Definitions and abbreviations (eCFR Regulation)
49 CFR 171.10	Units of measure (eCFR Regulation)
49 CFR 171.11	Use of ICAO Technical Instructions (eCFR Regulation)
49 CFR 171.12	Import and export shipments (eCFR Regulation)
49 CFR 171.12a	Canadian shipments and packagings (eCFR Regulation)
49 CFR 171.13	Exceptions for Class 3, Divisions 4.1, 4.2, 4.3, 5.1, 6.1, and Classes 8 and 9 materials (eCFR Regulation)
49 CFR 171.14	Transitional provisions for implementing certain requirements (eCFR Regulation)
49 CFR 171.15	Immediate notice of certain hazardous materials incidents (eCFR Regulation)
49 CFR 171.16	Detailed hazardous materials incident reports (eCFR Regulation)
49 CFR 171.17	[Reserved] (eCFR Regulation)