Before a Notified Body can get involved, you need to know which Assessment and Verification of Constancy of Performance (AVCP) system applies to your product — this determines what testing is needed, whether a Notified Body is required at all, and which certificate or declaration you’ll ultimately need. Getting this wrong means delays, repeated testing, or a Declaration of Performance that doesn’t hold up. We help you identify the correct AVCP system, select and liaise with the right Notified Body, and coordinate the testing and certification process from start to finish.

What Is an AVCP System?
The Construction Products Regulation defines five AVCP systems (1+, 1, 2+, 3, 4), each setting out a different division of responsibility between the manufacturer and third parties — for example, who carries out initial type testing, who audits the factory production control, and whether ongoing surveillance is required. The harmonised standard for your product specifies which system(s) apply; we identify this and explain in plain terms what it means for your business.

How We Manage Notified Body Liaison
For systems requiring a Notified Body (1+, 1, 2+), we:
- Help you select an appropriately accredited Notified Body for your product category
- Prepare and submit the required documentation and samples
- Coordinate testing schedules and respond to Notified Body queries on your behalf
- Track certificate issuance and renewal deadlines
What You Need Before Engaging a Notified Body
- A correctly classified product with its applicable harmonised standard identified
- Representative samples for type testing
- Factory production control documentation (for systems requiring it)
- A clear understanding of which AVCP system applies — we can confirm this for you first
Our Process
- AVCP determination — confirm which system(s) apply to your product
- Notified Body selection — match you with an accredited body for your category
- Coordination — manage testing, documentation, and communication
- Certificate & DoP — receive certification and finalise your Declaration of Performance
For background on AVCP systems, see our guide to AVCP systems 1+, 1, 2+, 3 and 4 explained. If a broader compliance review would help, see our CPR Compliance Audit & Gap Analysis service.
Not sure which AVCP system applies to your product? Get in touch and we’ll confirm it for you, free of charge.
