Final answer:
The Hazardous Materials Regulations (HMR) are found in Title 49 of the Code of Federal Regulations (CFR), and the EPA's hazardous waste regulations under RCRA are found in Title 40 of the CFR. These regulations ensure the safe management of hazardous materials and waste.
Step-by-step explanation:
The Hazardous Materials Regulations (HMR) are located in the Code of Federal Regulations (CFR), which is a collection of all the rules and regulations implemented by federal agencies. Specifically, the HMR can be found in Title 49 of the CFR, parts 100 to 185, which address the transportation of hazardous materials and are enforced by the Pipeline and Hazardous Materials Safety Administration (PHMSA), a part of the United States Department of Transportation (DOT).
Within the context of hazardous waste, the Environmental Protection Agency (EPA) regulates hazardous wastes under the Resource Conservation and Recovery Act (RCRA), which is codified in Title 40 of the CFR. Regulations that apply to the treatment, storage, and disposal of hazardous waste are detailed in various parts of this Title, ensuring that hazardous waste is managed safely from its creation to its final disposal, a concept known as "cradle to grave."