Which agency has full authority of Title 21?

• A. CUSTOMS
• B. DEA
• C. DHS
• D. CBP

Answer: (A)

At the border, the agency with the broad authority to enforce Title 21 is the agency responsible for controlling imports and entry of goods. Title 21 covers drugs and related products, so enforcing its import provisions at ports of entry—screening shipments, seizing illegal counterparts, and initiating referrals for prosecution—falls to the agency charged with border enforcement. That agency coordinates the initial enforcement of these laws at the border and works with other agencies as needed, but it is the primary authority for import-related enforcement under Title 21. While other agencies like the Drug Enforcement Administration handle specific aspects of drug regulation and enforcement inside the country, and the FDA regulates safety and regulatory compliance, the border-focused enforcement power for Title 21 is vested in Customs.