The purpose of this legislation is to repeal a specific rule set by the Environmental Protection Agency (EPA) that established national emission standards for hazardous air pollutants from coal- and oil-fired electric utility steam generating units. The goal of this repeal is to reduce regulatory burdens on the energy industry, particularly those that rely on coal and oil for electricity generation. The key provision of this legislation is the outright repeal of the EPA's rule, which was intended to review and update standards for hazardous air pollutants emitted by certain power plants.