The United States has paused a $40 billion technology agreement with Britain, officials said, following concerns in Washington over London’s approach to digital regulation and food standards.

Britain became the first country to agree in principle to lower some U.S. tariffs in May, but implementation has been slow. Talks on sectors such as steel stalled, though the two sides agreed a framework pharmaceutical deal earlier this month.

British ministers say the May tariff deal allowed higher U.S. beef exports without compromising UK standards and insist digital regulations and tax will not be negotiated away.