Final answer:
Exemptions from normal transportation requirements for hazardous waste under RCRA can occur if the generator secures written permission from the EPA. This is part of the cradle-to-grave system of hazardous waste management to ensure safety and environmental protection.
Step-by-step explanation:
Under the Resource Conservation and Recovery Act (RCRA), normal transportation requirements for hazardous waste can be exempted if the generator receives written permission from the Environmental Protection Agency (EPA). This allowance is provided to ensure that the hazardous waste is managed safely throughout its lifecycle, from generation to disposal, which is also known as the cradle-to-grave system. The RCRA regulations include the generation, transportation, treatment, storage, and disposal of hazardous waste, ensuring protection to human health and the environment, and it's the responsibility of the waste generator to comply with these regulations. Proper documentation and adherence to EPA guidelines are critical during the exemption process for the transportation of hazardous waste.