Why This Matters

For businesses operating in hazardous environments, compliance with ATEX, UKCA, and UKEX regulations is critical. Since Brexit, the regulatory framework has evolved, creating both challenges and opportunities for manufacturers, suppliers, and end-users. This article outlines the 2025 situation—what’s confirmed, what’s changing, and what to watch out for.

UKEX and UKCA for Explosive Atmospheres

From January 2021, products intended for explosive atmospheres in Great Britain must comply with the UKEX scheme, under the umbrella of UKCA marking. Conformity assessments are carried out by UK Approved Bodies, under the amended Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016.

Recognition of CE and ATEX Certificates

The UK government now recognises CE-marked goods indefinitely in many categories, including Ex equipment. This provides flexibility for manufacturers already holding ATEX certificates, as their products can continue to be placed on the GB market without immediate retesting. However, conditions apply, particularly around certificate expiry dates and product modifications.

Transitional Labelling and Importer Requirements

Transitional easements mean UKCA/UKEX marks and importer details can be shown on packaging or accompanying documentation rather than directly on products. These easements have been extended, with some lasting until 2025 and others to 2027. Spare parts used to maintain existing systems can still be covered under earlier compliance approvals.

Substantial Change Ambiguity

A major area of uncertainty remains around what qualifies as a “substantial change” to a product. Minor updates may not require new certification, but significant modifications could trigger the need for fresh UKEX assessment. Clearer guidance is still awaited.

Approved Bodies and Conformity Assessment

UK Approved Bodies are now issuing UKEX certificates. In certain cases, conformity assessments completed by EU Notified Bodies before cut-off dates can still be used for UKEX purposes, helping manufacturers avoid duplicate testing. Careful tracking of certificate validity and evolving standards is essential.

Northern Ireland and EU Market Considerations

While UKEX/UKCA applies in Great Britain, Northern Ireland continues under EU rules, requiring CE marking (and sometimes UKNI marking). Businesses trading across GB, NI, and EU markets need to manage dual-marking and certification carefully.

Enforcement and Market Surveillance

Enforcement remains a developing area. Authorities are expected to step up checks on compliance, but feedback suggests consistency still varies by product category.

Conclusion

As of 2025, the key takeaway is that CE marking remains valid indefinitely in many cases, but UKEX certification is the long-term framework for explosive atmosphere equipment in Great Britain. Companies should:

• Monitor certificate expiry dates carefully.

• Use CE/ATEX certification where accepted, but prepare for UKEX transition.

• Stay alert to new announcements from UK government, OPSS, and Approved Bodies.

Stay Informed

At Hazardous Engineering Solutions and Engineering Maintenance Solutions, we track every regulatory update that impacts hazardous areas and maintenance professionals.

👉 For the latest ATEX / UKCA / UKEX insights, event previews, and compliance news, visit www.hazeng.com