Full Faith and Credit Clause: This clause requires states to recognize each other's public acts (laws), records, and judicial decisions. For example, if you get married in one state, other states must recognize your marriage.
Commerce Clause: The Commerce Clause gives Congress the power to regulate commerce among the states. This means that Congress can make laws related to trade between states or any activity that affects interstate commerce.
Supremacy Clause: The Supremacy Clause establishes that the Constitution, federal laws, and treaties are the supreme law of the land. It means that when there is a conflict between federal and state laws, federal law prevails.