The start of the third quarter triggered a vast, scheduled administrative reset of the UK tariff, with over 18,000 measures taking effect to renew steel safeguard quotas, agricultural TRQs, and anti-dumping duties on fertilisers. This foundational rollover, which confirmed policy continuity, was immediately followed by a pivot to new enforcement. Regulators introduced new trade defence measures targeting US polyethylene and significantly restructured existing duties on Indonesian biofuels, signalling a focus on trade remedies for the second half of the year.

The week in brief

The week was defined by a clear two-part narrative. It began with one of the year’s largest administrative events: the scheduled rollover of thousands of time-bound measures to mark the start of the third quarter and second half of the year. This immense but routine activity, confirming policy continuity in key sectors like steel and agriculture, gave way in the latter half of the week to a distinct pivot towards new policy enforcement. With the administrative reset complete, regulators immediately implemented new, targeted trade defence measures, indicating a shift from maintenance to active intervention.

What mattered most

The week's activity was dominated by three significant developments:

  • The Great Q3 Rollover: The start of the new quarter on 1 July saw over 18,000 measures take effect in a massive, scheduled transition. This activity was not new policy but the administrative renewal of existing regimes for the new trading period. Key renewals included the tariff rate quotas (TRQs) for the UK’s steel safeguard regime (Chapters 72 and 73), numerous agricultural TRQs, particularly for meat products (Chapter 02), and the immediate reinstatement of anti-dumping duties on nitrogenous fertilisers (HS 3102) from Russia and Belarus, with rates including 20%.

  • New Trade Defence Measures on US Plastics: On 2 July, the UK introduced new protective duties on twelve commodity lines for polyethylene from the United States. The measures, targeting various grades of linear low-density polyethylene (LLDPE) within HS Chapter 39, marked the first significant new trade remedy action of the third quarter.

  • Indonesian Biofuel Duties Restructured: For the second consecutive day, regulators focused on trade remedies. A large-scale update on 3 July recalibrated existing duties on biofuels from Indonesia. The action involved ending and replacing measures across 37 commodity lines in the mineral fuels (Chapter 27) and fats and oils (Chapter 15) chapters, representing a significant technical adjustment to the trade defence framework for these products.

Threads to watch

The back-to-back introduction of new trade defence measures—first against US plastics, then on Indonesian biofuels—is the most important signal from the week. This flurry of activity, coming immediately after the major Q3 administrative reset, suggests regulators are shifting their focus from scheduled maintenance to active policy enforcement. The actions indicate that trade remedies are a key area of focus for the second half of the year, and importers should watch for further activity in this space.

By the numbers

Change records by type Change records by type Week of 28 Jun – 04 Jul 2026 · UK Global Tariff Component added 6,525 Exclusion removed 6,160 New measures 6,050 Component removed 3,888 Measures ending 2,034 Exclusion added 1,314 Condition added 1,299 Footnote added 689 Each record is a distinct measure-level change detected that week. Change records by category Change records by category What kind of rule changed Customs duties 11,285 Exclusion 7,474 Preference 4,836 Condition 1,752 Tariff quotas 1,698 Footnote 1,208 Trade defence (AD/CVD/safeguard) 447 Nomenclature 283 Trade-defence activity by origin Trade-defence activity by origin Commodity lines hit by anti-dumping / countervailing / safeguard changes Indonesia 37 Countries and territories subject to… 28 Countries and territories subject to… 21 Countries and territories subject to… 19 Countries and territories subject to… 15 Countries and territories subject to… 15 United States 12 Countries and territories subject to… 10 Counts distinct commodity codes per origin loaded that week. Most-affected product chapters Most-affected product chapters HS chapters with the most change records Iron and steel 17,042 Articles of iron or steel 6,692 Meat and edible meat offal 3,038 Mineral fuels, mineral oils and produ… 508 Organic chemicals 358 Animal, vegetable or microbialfats an… 318 Miscellaneous chemical products 239 Preparations of vegetables, fruit, nu… 181