Which of the following is true about hazardous waste regulations?

The correct answer highlights that regulations surrounding hazardous waste are complex and are influenced both by state and federal requirements. This means that entities dealing with hazardous waste must ensure compliance with a patchwork of regulations that can differ significantly across individual states while also adhering to overarching federal laws.

The presence of federal regulations, such as those outlined by the Environmental Protection Agency (EPA), establishes minimum standards for hazardous waste management. However, individual states can implement stricter regulations that require even greater care in the handling, treatment, and disposal of hazardous materials. This is crucial because hazardous waste can pose significant risks to public health and the environment, and the regulations are designed to mitigate these risks effectively. Understanding this dual-layer of regulation is essential for proper compliance and safe waste management practices.

Other options do not align with the regulatory framework governing hazardous waste. They suggest misunderstandings about where these regulations apply, the treatment of hazardous materials, and acceptable disposal methods. Proper awareness of the applicable regulations ensures safety and environmental protection, which is foundational in managing hazardous waste responsibly.