GB, the EU and Northern Ireland — three markets, one product

Because EMC and Low Voltage conformity assessment is Module A — internal production control, no notified body — a manufacturer never triggers UKNI. UKNI is only required where a UK notified body performs mandatory third-party assessment, and for these regimes there is none. So Great Britain takes UKCA or CE; Northern Ireland takes CE alone.

Under Regulation (EU) 2019/1020 Article 4 a product may be placed on the EU market only if an economic operator established in the Union holds the declaration of conformity and technical documentation, and their name and contact details appear on the product or its packaging. Article 4(5) covers both the EMC Directive 2014/30/EU and the Low Voltage Directive 2014/35/EU. Intepro's Limerick entity is established in the Union.

Great Britain does not use EU harmonised standards. DBT publishes its own designated standards on gov.uk, and following them gives presumption of conformity — a different list, on a different website, with its own update cycle.