A more thorough explanation:

Federal Act

A law created by the United States Congress.

The body of law that includes the United States Constitution, federal statutes and regulations, U.S. treaties, and federal common law is known as federal law. This is different from state law, which only applies within a specific state.

• The Americans with Disabilities Act is a federal act that prohibits discrimination against people with disabilities in employment, transportation, and other areas of public life.
• The Clean Air Act is a federal act that regulates air pollution and sets standards for air quality.

These examples illustrate how federal acts are created by Congress to address important issues that affect people across the entire country. They are part of the body of federal law that helps to ensure that everyone is treated fairly and that important issues are addressed consistently across all states.