- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 25 Sep 2018
Attestation of conformity AoC
The Construction Products Regulation (CPR) was introduced in 2011 to harmonise performance information on construction products across the European Economic Area (EEA). It is made most visible by the mandatory CE marking of regulated products.
Some parts of the Construction Products Regulation applied from 24 April 2011, but it came into force in full on 1 July 2013. From this time, construction products placed on the market in the EEA that are covered by a harmonised European product standard or a European Technical Assessment need to be CE marked and accompanied by a Declaration of Performance (DoP). This is intended to ensure that reliable technical information is provided about the performance of construction products in a common technical language and tested using consistent assessment methods.
Demonstrating compliance with the regulations requires ‘attestation of conformity’ (AoC). There are five levels of attestation of conformity depending on the nature of the product. The lowest levels (1 or 1+) have the most demanding requirements and might be necessary for products with safety-critical aspects. The highest level (4) is the least demanding and might for example apply to decorative products.
 Related articles on Designing Buildings Wiki
- British Standards.
- CE marking.
- Construction Products Regulations.
- European Technical Approval.
 External references
- BSI, Construction Products Regulation (CPR).
Featured articles and news
The world heritage list has evolved to embrace built, cultural and natural heritage.
The Ocean Cleanup project
The various types of bond and when they are used.
It's vital the industry responds to proposals for reform of the safety regulatory system.
RSHP's Merano wins RIBA accolade.
How to differentiate between partial possession and early use.
Ofwat proposes £12 billion additional investment and £50 bill reductions.
Avoiding 'winner's curse' and other useful info.
Developing test methods for video flame/smoke detectors
Waiting for a new deal ...but will funding materialise?