According to the EPA, what is the threshold amount of chlorine (in pounds) that requires a chemical risk management program?

The threshold amount of chlorine that requires a chemical risk management program, as specified by the Environmental Protection Agency (EPA), is 2,500 pounds. This regulation is part of the Risk Management Plan (RMP) rule under the Clean Air Act, which aims to prevent chemical accidents and ensure public safety. When facilities store or use chlorine in quantities exceeding this limit, they must develop a risk management plan that includes a hazard assessment, prevention measures, and an emergency response plan. This requirement is crucial for protecting workers, the surrounding community, and the environment from potential chemical hazards associated with chlorine use. The other quantities listed do not meet the specific threshold established by the EPA, which is why they are not applicable in this context.