Order designates illicit fentanyl as a weapon of mass destruction

The President designates illicit fentanyl and its core precursor chemicals as weapons of mass destruction. Illicit fentanyl means fentanyl made, distributed, dispensed, or possessed for those purposes in violation of specified federal drug laws. Core precursor chemicals include piperidone-based substances. The designation does not itself create a private legal right or benefit. Implementation remains subject to existing law and available funding. The designation takes effect through the order issued on December 15, 2025.

Federal agencies must take appropriate steps against illicit fentanyl, including investigations, prosecutions, financial actions, military-support reviews, emergency-response updates, and threat-network identification. The Attorney General, Secretaries of State, Treasury, War, and Homeland Security, and other relevant agencies carry out the listed actions against fentanyl trafficking and related precursor chemicals. The Attorney General is directed to pursue investigations and prosecutions, including charges, sentencing enhancements, and sentencing variances when appropriate. The Secretaries of State and Treasury must act against relevant assets and financial institutions as allowed by law. The Secretaries of War and Justice must determine whether military resources may support Justice Department enforcement under the cited law; the order does not guarantee that resources will be provided. Homeland Security must identify smuggling threat networks using relevant weapons and nonproliferation intelligence, consistent with law and agency coordination. The Attorney General's investigations and prosecutions must begin immediately. The order gives no separate deadline for the other listed actions.