The purpose of this legislation, known as the Foreign Emissions and Nonattainment Clarification for Economic Stability Act (FENCES Act), is to amend the Clean Air Act. It aims to clarify how emissions from outside the United States are treated in relation to air quality standards and to provide states with more flexibility in managing air quality issues that may be influenced by foreign emissions. Key provisions of the FENCES Act include clarifications on what constitutes emissions that are beyond a state's control.