What does the EPA issue guidelines concerning?

The Environmental Protection Agency (EPA) is a federal agency in the United States that is primarily focused on protecting human health and the environment. This includes issuing guidelines, regulations, and standards related to air and water quality, waste management, pollution control, and the safe use of chemical substances.

When it comes to the environment, the EPA's role encompasses much more than just guidelines; it aims to ensure that environmental policies are implemented effectively to safeguard ecosystems and public health. This includes monitoring environmental conditions, enforcing regulations that protect natural resources, and conducting research to inform environmental policy.

While the EPA does have an indirect influence on vehicle emissions as part of its environmental mission, its overarching focus is broader—addressing all aspects of environmental protection rather than just specific sectors like transportation.