Which organization regulates employees' right to know about hazardous waste risk?

The correct choice pertains to an organization that is not primarily responsible for regulations and standards related to hazardous waste. The Occupational Safety and Health Administration (OSHA) oversees the safety and health of workers, including informing them about hazardous substances in the workplace through the Hazard Communication Standard (HCS). This regulation obligates employers to inform employees about hazardous chemicals they might be exposed to, ensuring they are aware of the potential risks, thereby empowering them with the right to know.

The Environmental Protection Agency (EPA) plays a key role in managing hazardous waste at a broader environmental level rather than directly addressing employee rights. The CDC focuses on public health and safety issues but does not primarily regulate workplace hazardous materials in the context of employee rights.

To summarize, OSHA is the organization specifically tasked with ensuring employees are informed about hazardous waste risks, thereby affirming their right to know in a workplace setting.