How to Use 49 CFR Hazardous Materials Shipping Regulations
Structure of the Code of Federal Regulations
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49 CFR Basic Outline
The Code of Federal Regulations follows the same basic outline used for most written material. Headings follow the descending order shown below:
|Title:||Title 49 - Transportation|
|Subtitle:||Subtitle B - Other Regulations Relating To Transportation|
|Chapter:||Chapter I: Pipeline and Hazardous Materials Safety Administration, Department of Transportation|
|Subchapter:||Subchapter C - Hazardous Materials Regulations|
|Part:||Part 172 - Hazardous materials table, special provisions, hazardous materials communication, emergency response information, training requirements, and security plans|
|Subpart*||Subpart D - Marking|
*Listed under Parts, as needed, in descending order.
Steps to Understanding the Structure of 49 CFR
Step 1: Turn to page 1 in 49 CFR, Parts 100-185. Notice the CFR title at the top of the page:
"Title 49 — Transportation"
The Parts contained in this volume are noted in parentheses: (This book contains parts 100 to 185). The subtitle and chapter are also listed:
"Subtitle B - Other Regulations Relating to Transportation"
"Chapter I - Pipeline and Hazardous Materials Safety Administration, Department of Transportation"
Step 2: Now locate the Chapter I index:
Chapter I - Pipeline and Hazardous Materials Safety Administration, Department of Transportation"
Notice that Subchapter C contains the Hazardous Materials Regulations (HMR).
The pyramid diagram below illustrates the HMR format just discussed and the location of the HMR in 49 CFR.
Rules of Construction, § 171.9
Unless specifically stated otherwise:
- singular words include the plural;
- plural words include the singular;
- masculine words include the feminine;
- "must" means required;
- "shall" means required;
- "should" means recommended, but not required;
- "may" means permitted, but not required;
- "includes" means includes, but not limited to; and
- "no person may" means no person is required, authorized or permitted to...
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