Certificate of Constancy of Performance COCOP
A Certificate of Constancy of Performance (CoCoP) is awarded to a product if the standards it claims to have met have been achieved through testing systems that have been agreed and harmonised throughout the EU, or designated by the UK and that the product has been manufactured with these standards in mind. A CoCoP can only be awarded in line with standards set by the Assessment and Verification of Constancy of Performance (AVCP) system, which defines how to assess products and how to control the constancy of the assessment results.
On 18 December 2018, the government laid a statutory instrument to ensure a functioning CPR regime when the UK left the European Union. This statutory instrument delivered the policy approach set out in a technical notice published on 13 September 2018. Ref https://www.gov.uk/government/news/continuity-of-requirements-under-the-construction-products-regulation-when-the-uk-leaves-the-european-union
The government made legislation in March 2019 which came into effect on 1 January 2021 to make arrangements for the regulation of construction products after EU Exit.
The legislation which made amendments to the regime for construction products post the transition period were:
- Construction Products (Amendment etc.) (EU Exit) Regulations 2019
- Construction Products (Amendment etc.) (EU Exit) Regulations 2020
- Construction Products (Amendment etc.) (EU Exit) Regulations 2022
- The Construction Products (Amendment) Regulations 2025
On 2 September 2024 the Minister for Building Safety and Homelessness issued a written ministerial statement regarding recognition of the CE marking for construction products. The CE mark will continue to be available when placing construction products on the market in Great Britain. The UK mark (also known as the UKCA mark) can also be used.
On 7 January 2025 the revised EU Construction Products Regulation (EU) 2024/3110 was published in the Official Journal of the European Union on 18 December 2024 came into force, which includes the introduction of the mandatory Digital Product Passport (DPP). The new CPR will become more generally applicable from 8 January 2026 giving the construction industry one year to familiarise itself with the new legal framework. As a result in the UK the Construction Products (Amendment) Regulations 2025 (Statutory Instruments 2025 No. 1172) was laid before Parliament on 10th November 2025 with a view to being in force from 8 January 2026. These regulations make minor technical amendments to ensure continuity of the current policy which enables ‘CE’ marked construction products to be sold in Great Britain, thus coinciding with the full EU regulation from January 2026.
[edit] Related articles on Designing Buildings
- Articles about products and services.
- Attestation.
- Attestation of conformity.
- BBA becomes an Approved Body for UKCA Marking.
- British Board of Agrément.
- British Standards.
- Building activities definition.
- Building complex.
- Building component.
- Building element.
- Building entities.
- Building spaces definition.
- Building system.
- By-product.
- CE marking.
- CE marking.
- Co-product.
- Constituent construction product.
- Construction Products Regulations.
- National Construction Products Regulator NCPR.
- Construction Products Regulation if there is no Brexit deal.
- Construction Products Reform Green Paper and Consultation.
- Deadline for CE marked products extended to 1 January 2023.
- Energy related products regulations.
- European Technical Approval.
- Intermediate product.
- Kitemark.
- Manufacturer.
- Manufacturer’s certificate.
- National construction products regulator established.
- Office for Product Safety and Standards OPSS.
- Product manufacturers must regain confidence.
- Products v goods v materials.
- Standards.
- Sundry items.
- The Construction Industry Council summarises what to expect from the Construction Products Regulations.
- Third party accreditation.
- UK Conformity Assessed UKCA.
- United Kingdom Accreditation Service UKAS.
Featured articles and news
Plumbing and heating for sustainability in new properties
Technical Engineer runs through changes in regulations, innovations in materials, and product systems.
Awareness of the Carbon Border Adjustment Mechanism
What CBAM is and what to do about it.
The new towns and strategic environmental assessments
12 locations of the New Towns Taskforce reduced to 7 within the new towns draft programme and open consultation.
Buildings that changed the future of architecture. Book review.
The Sustainability Pathfinder© Handbook
Built environment agency launches free Pathfinder© tool to help businesses progress sustainability strategies.
Government outcome to the late payment consultation, ECA reacts.
IHBC 2025 Gus Astley Student Award winners
Work on the role of hewing in UK historic conservation a win for Jack Parker of Oxford Brookes University.
Future Homes Building Standards and plug-in solar
Parts F and L amendments, the availability of solar panels and industry responses.
How later living housing can help solve the housing crisis
Unlocking homes, unlocking lives.
Preparing safety case reports for HRBs under the BSA
A new practical guide to preparing structural inputs for safety cases and safety case reports published by IStructE.
Male construction workers and prostate cancer
CIOB and Prostate Cancer UK encourage awareness of prostate cancer risks, and what to do about it.
The changed R&D tax landscape for Architects
Specialist gives a recap on tax changes for Research and Development, via the ACA newsletter.
Structured product data as a competitive advantage
NBS explain why accessible product data that works across digital systems is key.
Welsh retrofit workforce assessment
Welsh Government report confirms Wales faces major electrical skills shortage, warns ECA.
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.

























