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Commission Delegated Regulation (EU) 2026/1310: What Changes?
Commission Delegated Regulation (EU) 2026/1310 entered into force on 17 September 2026. It is the first implementing measure under the new European regulatory framework for construction products.
For the time being, the Regulation does not change the operational requirements for CE marking of windows and doors, curtain walling, and shutters. The harmonised standards currently in force and the corresponding assessment systems under the previous Construction Products Regulation (CPR), Regulation (EU) No 305/2011, continue to apply. For example, EN 14351-1 remains applicable to doors and windows, while EN 13830 remains the reference standard for curtain walling.
The changes introduced by the new regulatory framework will become operational only when new harmonised product standards developed under the new CPR are published. For doors and windows, the standards revision process is expected to get under way during 2026, but the new harmonised standards are not expected before 2028–2029.
Delegated Regulation (EU) 2026/1310 supplements Regulation (EU) 2024/3110, adopted on 27 November 2024. The latter establishes the new European framework for construction products and will progressively replace Regulation (EU) No 305/2011.
The new CPR revises and expands the system for assessing and checking construction products, introducing objectives closely linked to European sustainability and digitalisation policies. The main developments include:
- Environmental sustainability: Requirements to assess and declare the environmental impacts of products, including their impact on climate change, will be introduced progressively using life cycle assessment (LCA) data.
- Digitalisation: The traditional Declaration of Performance will be replaced by the new Declaration of Performance and Conformity (DoPC), intended to be managed digitally within a framework that also provides for a Digital Product Passport.
- New harmonised rules: The new CPR revises the framework for marketing construction products in the European Union and provides for the gradual replacement of Regulation (EU) No 305/2011.
New Assessment and Verification Systems
The new regulatory framework replaces the previous concept of Assessment and Verification of Constancy of Performance (AVCP) with new Assessment and Verification Systems (AVS).
Delegated Regulation (EU) 2026/1310 establishes the AVS systems that will apply to the various product families once the transition to the new harmonised standards is complete.
Two developments are particularly significant. The first is the introduction of the new AVS 3+ system, specifically dedicated to environmental sustainability. Under this system, a notified body will verify and validate the data, assumptions, calculation models and other elements used by the manufacturer to determine a product’s environmental performance.
The second is the extension of verification to conformity with specific product requirements. The new framework goes beyond checking declared performance and its consistency over time: it also introduces requirements concerning, for example, functionality, safety and environmental aspects. These requirements will be defined progressively through harmonised standards and subsequent legislative acts.
Practical Implications
In the short term, nothing changes in the CE marking procedures for manufacturers of windows and doors, curtain walling, and shutters. They will continue to use the harmonised standards currently in force and the corresponding assessment systems under the previous CPR.
Nevertheless, Delegated Regulation (EU) 2026/1310 is an important step because it sets out the structure of the future CE marking system under the new CPR. The new framework will place considerably greater emphasis on environmental sustainability, digital product information and verification of conformity with mandatory product requirements, alongside the traditional assessment of performance.
The transition therefore has no immediate effect on existing CE marking. Over the coming years, however, it will substantially change how construction products are assessed, documented and placed on the European market.
Comparison of the Assessment Systems
Previous CPR 305/2011 — AVCP systems
| AVCP system | Manufacturer’s role | Notified body’s role |
|---|---|---|
| 1+ | Factory production control (FPC) and periodic testing of samples | Initial testing, initial inspection, FPC surveillance and verification testing of samples |
| 1 | FPC and periodic testing of samples | Initial testing, initial inspection and FPC surveillance |
| 2+ | Initial determination of performance, FPC and testing of samples | Certification and surveillance of factory production control (FPC) |
| 3 | FPC | A notified laboratory determines product performance through testing or calculations |
| 4 | Determination of performance and FPC | No notified body involvement |
New CPR 2024/3110 — AVS systems
The new Regulation broadly retains levels 1+, 1, 2+, 3 and 4, but adds the new 3+ system. It also expands the scope of assessment beyond the constancy of performance to include conformity with product requirements.
| AVS system | Summary | Notified body involvement |
|---|---|---|
| 1+ | Comprehensive control with audit testing | Highest level: product assessment, FPC, surveillance and sample testing |
| 1 | Comprehensive control without audit testing | Product assessment and FPC certification and surveillance |
| 2+ | Control focused on FPC | Certification and surveillance of factory production control |
| 3+ — NEW | Environmental sustainability | Validation of environmental data, assumptions, modelling and calculations |
| 3 | Control focused on determination of the product type | Performance testing or calculations by a notified body |
| 4 | Manufacturer self-assessment | No notified body involvement |