This document was published by the CPA in partnership with the Office for Product Safety and Standards.
The Declaration of Performance (DoP) is a central requirement under the Construction Products Regulation 2011 (GB). It provides a standardised way for manufacturers and other economic operators to communicate how a construction product performs against its essential characteristics. By doing so, the DoP supports transparency, comparability, and compliance, helping architects, builders, designers, and regulators make informed decisions about which products are suitable for use.
This guide explains the obligations that apply to manufacturers, importers, distributors, and authorised representatives when drawing up and providing a DoP. It sets out when a DoP must be created, what information it must contain, and how it should be supplied. While it does not replace the legislation itself, the guide is intended to make the requirements of the CPR 2011 (GB) clearer and more accessible, enabling businesses to meet their legal duties with confidence and consistency.