Which of the following describes TSCA?

The Toxic Substances Control Act (TSCA) is primarily focused on the regulation of chemical substances, including both existing and new chemicals that might be introduced into commerce. This legislation empowers the Environmental Protection Agency (EPA) to evaluate and manage the risks associated with chemical production and use, ensuring that human health and the environment are safeguarded from potential hazards. Under TSCA, the EPA can collect data on chemicals, require testing, and take action to restrict or ban substances that pose an unreasonable risk.

The other options pertain to different areas of regulation. Pesticide usage is managed under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), while hazardous waste disposal falls under the Resource Conservation and Recovery Act (RCRA). Air pollutant emissions are governed by the Clean Air Act, which focuses on regulating air quality and the overall emissions of harmful pollutants. Each of these acts addresses specific environmental concerns that are distinct from the primary focus of TSCA.