UK Compliance & Post-Brexit Regulatory Software

Brexit created a parallel regulatory universe that requires companies to maintain separate compliance documentation for GB and EU market access — and the gap between the two systems is widening. UKCA marking has fully replaced CE marking for products sold in Great Britain, with distinct conformity assessment routes and UK-designated standards. UK REACH operates as an independent chemical registration system, requiring separate substance notifications to the HSE rather than ECHA. The Modern Slavery Act 2015 predates and differs from its EU equivalents in structure, threshold, and enforcement. The £200-per-tonne Plastic Packaging Tax has no direct EU analogue.

Northern Ireland adds a layer of complexity under the Windsor Framework, retaining alignment with EU single market rules for goods while remaining part of the UK customs territory. Products moving from GB to NI may require different markings and declarations than those sold exclusively within GB. For manufacturers serving the UK-wide market plus EU export, the permutations of required documentation multiply rapidly.

Sustalium handles this parallel documentation challenge by maintaining linked but separate compliance records for UK and EU requirements. Your REACH substance data exists in both UK REACH and EU REACH formats, drawing from the same supplier declarations but producing jurisdiction-correct outputs. UKCA and CE conformity documentation share underlying test reports but generate separate Declarations of Conformity referencing the appropriate standards and legislation. When regulatory divergence creates new UK-specific requirements — as the Plastic Packaging Tax and packaging EPR scheme have — those obligations integrate alongside existing records without disrupting your EU compliance workflows.