HMRC: Critical CDS Data Element 2/3 Document Code Updates Issued

• HMRC has issued extensive updates to Customs Declaration Service (CDS) document codes in Data Element 2/3, Appendix 5A National, affecting UK import export codes.
• New codes like 9C02, 9Y16 (for UK steel measures from July 1, 2026, but now a temporary waiver), and 9EHC (Export Health Certificates) have been introduced.
• Document code 9001 is updated for the UK-India Free Trade Agreement (FTA) from July 15, 2026, and 9L51 now requires notification to the Secretary of State within 30 days of licence use.
• Existing codes 9023 and 9100 are amended for firearms import licences, and 9081 (CPTPP preference) now mandates additional declarations.
• Several codes, including 999L (with restrictions for export supplementary declarations) and a range of Y-series codes, have been removed or had their status codes and descriptions amended, with Y080 no longer a valid 5A Union document code.

Legal and compliance professionals advising on UK trade must meticulously review these adjustments to ensure their clients' operations remain compliant and to prevent potential delays or incorrect duty assessments.

HMRC has released a comprehensive series of updates to the Customs Declaration Service (CDS) document codes, specifically targeting Data Element 2/3 within Appendix 5A National. These revisions are critical for all entities involved in UK import export activities, as they directly impact the accuracy of customs declarations and overall HMRC customs compliance updates. The changes encompass additions of new codes, the removal of obsolete ones, and significant amendments to existing codes and their associated instructions.

The modifications are extensive, reflecting evolving trade agreements, regulatory requirements, and administrative structures. Legal and compliance professionals advising on UK trade must meticulously review these adjustments to ensure their clients' operations remain compliant and to prevent potential delays or incorrect duty assessments. The updates underscore the dynamic nature of customs regulations and the continuous need for vigilance in trade declarations.

Among the notable additions, document codes 9C02 and 9C03 have been integrated into Appendix 5A National. Furthermore, code 9Y16 was introduced in anticipation of UK steel measures set to take effect from July 1, 2026, but it served as a temporary contractual waiver and ceased to be valid for imports after September 30, 2026. A significant update concerns document code 9L51, which now carries a specific notification requirement: any party utilizing a licence under this code must inform the Secretary of State within 30 days. This highlights a critical procedural step for those relying on such licences. Other new codes include 9Y17, 9Y51, 9E50, 9L50, and 9U04, alongside 9EHC, specifically designated for declaring Export Health Certificates.

Several existing codes have undergone crucial amendments. Document code 9001 has been updated to reflect its application under the UK-India Free Trade Agreement (FTA), effective from July 15, 2026, a key detail for businesses trading with India. Codes 9023 and 9100 have been revised in preparation for 9023 becoming the new standard for firearms import licences. For preference claims under the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), document code 9081 now explicitly mandates the concurrent declaration of either 9U01, 9U02, or 9U03. The description for 9011 has been expanded to include "and technology," while 9022's description and completion instructions have been refined for goods not subject to sanctions or those claiming exemption.

The updates also include the removal of several codes from Appendix 5A National, such as 999L, 9CLM, 9ING, 9RCP, and 9SDC. While document code Y080 was deleted from the national list, it has since also been removed from the 5A Union document codes as it is no longer used by the EU. A broader deletion exercise saw codes 9501, Y067, Y250 through Y259, and Y501 removed from Appendix 5A National. Notably, the use of document code 999L has been restricted to export supplementary declarations with an acceptance date no later than January 31, 2025.

Changes to document status codes are also prominent. The list of status codes applicable with 920C has been updated, with the removal of XA and XB leading to the document ID field becoming 'Mandatory' and the document reason field changing to 'Not Applicable'. Document code 9229 has been updated to absorb the import functionality previously handled by Y229. Furthermore, status code 'XW' has been added to codes 9015 and 9031, which have also been amended to incorporate new E series status codes for electronic licences. Preparatory codes like 9Y15 and 9Y14 have been added for upcoming tariff measure amendments concerning partial suspension and mercury, respectively. New codes 1PPS, 1RMS, and 1SCF have been added for the Simplified Process for Internal Market Movements (SPIMM), which has since launched, making these codes usable. The creation of the Department for Business, Innovation, Science and Trade (BIST) is also reflected in these HMRC CDS Data Element 2/3 document code updates.

Lawyers and compliance officers advising on UK trade, import/export, or customs matters must review these updated document and reference codes for the Customs Declaration Service (CDS) to ensure accurate declarations, avoid delays, and maintain compliance with new regulations, trade agreements (like UK-India FTA), and specific licensing requirements (e.g., 9L51 notification). Failure to use correct codes or adhere to new conditions could result in penalties or incorrect duty assessments.

Source: Original reporting via HMRC guidance