UK customs and trade news: September 2026

News in brief: UK Global Tariff and other reference documents updated for 1 October 2026, including steel tariff-rate quotas, tariff suspensions and authorised use; CPTPP preferential tariff and origin reference documents updated; new UK vaping products duty and vaping duty stamps scheme to apply from 1 October 2026; UK CBAM emissions and verification regulations published, covering emissions calculation, monitoring, verification and record-keeping from January 2027; anti-subsidy investigation into creamy/white limestone from Portugal terminated; proposed definitive anti-subsidy measure on HVO biodiesel from the US rejected; anti-dumping duty on wire rod from China extended for five years with revised product coverage; provisional anti-dumping duty on certain glass containers from China introduced; new Iran sanctions measures took effect from 29 September 2026; Global Combat Air Programme export licence updated and new de-minimis OGEL introduced; UK-Switzerland enhanced FTA documents published following conclusion of negotiations; UK-Singapore pharmaceutical MRA negotiations launched; ASEAN-UK economic cooperation documents published; UK trade agreements in effect list updated to include Canada under CPTPP; several HMRC customs guidance pages updated.