This article examines the constitutional authorities and various statutes that reserve tariff authorities for Congress and some legal authorities in which Congress has delegated tariff authorities to the President. The U.S. is a party to numerous multilateral and regional trade agreements that have binding tariff commitments that will be impacted as well.

Historically, trade agreements have focused on reducing barriers to trade—such as tariffs and quotas—while encouraging economic integration and growth. Environmental protection was often considered a separate issue, addressed primarily through national regulations or multilateral environmental agreements like the Paris Agreement. However, recent developments suggest that trade and environmental concerns are converging, with many new trade agreements incorporating specific environmental provisions.