What must some state and local laws do regarding EPA regulations?

Some state and local laws are required to align with EPA regulations as established under the Clean Air Act, which serves as a federal framework for regulating air pollutants. This means that states have the authority to set their own regulations, but these must meet or exceed the standards set by the Clean Air Act when it comes to protecting air quality.

In certain cases, state and local jurisdictions can implement stricter regulations than those established at the federal level. This approach allows them to address specific environmental concerns that may not be adequately covered by federal standards, ensuring that local conditions are taken into account.

Thus, both the requirement to adhere to the Clean Air Act and the potential to adopt stricter regulations create a cohesive relationship between federal guidelines and state or local initiatives in maintaining air quality and public health.