An executive order was issued on June 16, 2025, to implement key provisions of the U.S.–U.K. trade deal announced on May 8, 2025, with U.K. Prime Minister Keir Starmer. Key points include:

• Automobile Tariff-Rate Quota:
  • Allows 100,000 U.K.-made automobiles annually to enter the U.S. at a 10% tariff.
  • Certain automotive parts for U.K.-made vehicles are also eligible for 10% tariffs.
• Aerospace Products:
  • Tariffs removed on U.K. aerospace products covered under the World Trade Organization Agreement on Trade in Civil Aircraft.
• Steel and Aluminum:
  • Tariffs remain at 25% until future tariff-rate quotas are designed for U.K. steel and aluminum imports.
• Pharmaceuticals:
  • Preferential treatment for U.K. pharmaceuticals is planned, pending a national security investigation and U.K. compliance with supply chain security.

Implementation is subject to future regulatory actions by the Secretary of Commerce, the U.S. International Trade Commission (ITC) and the U.S. Customs and Border Protection (CBP).

We will continue to monitor the situation and provide updates once we receive further details from CBP. These regulations are subject to change, so please reach out to your Mallory Alexander representative or our M-PACT team for assistance with any questions related to calculating tariffs by HTS code.