Which clause requires states to honor the laws of other states?

• A. The Supremacy Clause
• B. The Full Faith and Credit Clause
• C. The Necessary and Proper Clause
• D. The Commerce Clause

Answer: (B)

The Full Faith and Credit Clause is the part of the U.S. Constitution that mandates states to respect and recognize the public acts, records, and judicial proceedings of every other state. This clause is vital for ensuring that legal decisions and official documents, such as marriage licenses or court rulings, are acknowledged across state lines. For instance, if a couple is married in one state, that marriage must be recognized by all other states, regardless of differing state laws relating to marriage.

In contrast, the Supremacy Clause establishes that federal law takes precedence over state laws, while the Necessary and Proper Clause grants Congress the power to pass any laws deemed necessary to execute its duties. The Commerce Clause gives Congress authority to regulate interstate commerce, which pertains to economic activities rather than the recognition of laws between states. Thus, the Full Faith and Credit Clause is the specific constitutional provision that ensures states honor the laws and proceedings of other states.