On 30 September 2026, HMRC published an update to Data Element 2/3 (Documents and Other Reference Codes – Union) of the Customs Declaration Service (CDS), revising the mandatory document codes, status codes, and declaration requirements for Union goods movements under Appendix 5A of the CDS Tariff. This technical guidance directly implements the EU-UK Trade and Cooperation Agreement (TCA) supplementary provisions and the Windsor Framework’s green lane/red lane differentiation for Northern Ireland movements. The changes are effective for all customs declarations submitted from 1 October 2026 and are critical for customs intermediaries, freight forwarders, and traders using the CDS platform, which replaced CHIEF in March 2025.
Key Takeaways
- New TCA Preference Codes: Additional document codes (N935, N936, N937) now differentiate between full bilateral cumulation, diagonal cumulation, and non-originating material allowances, requiring exporters to hold supplier declarations at the point of CDS submission rather than post-clearance.
- Windsor Framework Lane-Specific Requirements: Green lane movements (Northern Ireland retail goods) require simplified dataset codes (Y981-Y985) with reduced documentary evidence, while red lane (EU-destined goods) mandates full Union Transit (T2/T2F) documentation and safety/security entry summary declarations (ENS).
- Digital Certificate Integration: The update mandates electronic submission of phytosanitary and veterinary certificates via the UK SPS (Sanitary and Phytosanitary) hub, with CDS validation rules rejecting declarations lacking matched certificate references, affecting agri-food traders immediately.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement