CPR Transition Period 2026: The Complete Practitioner’s Guide to EU Construction Products Regulation 2024/3110

The Construction Products Regulation 2024/3110 (CPR recast) represents the most significant overhaul of EU construction product rules since the original CPR 305/2011 entered into force over a decade ago. For manufacturers, importers, distributors, notified bodies, and technical assessors, the transition period culminating in 2026 is not a distant administrative concern — it is an operational deadline with direct consequences for market access, legal liability, and CE marking validity. This guide cuts through the legislative complexity and gives you a practical, step-by-step roadmap for navigating the 2026 transition window, understanding what changes, what remains familiar, and how to prioritise your compliance actions starting today.

1. Understanding the Legislative Timeline: From CPR 305/2011 to CPR 2024/3110

To appreciate why 2026 matters, you need to understand how the EU arrived at a full recast rather than an amendment. The original Construction Products Regulation, Regulation (EU) No 305/2011, replaced the Construction Products Directive 89/106/EEC and introduced the Declaration of Performance (DoP) and the CE marking system for construction products. While it created a functioning single market framework, a series of evaluations — including the European Commission’s REFIT review — identified persistent weaknesses: unclear obligations for digital product information, insufficient sustainability requirements, inadequate market surveillance powers, and limited enforcement consistency across Member States.

Following years of preparatory work, stakeholder consultation, and legislative negotiation, Regulation (EU) 2024/3110 was published in the Official Journal of the European Union and entered into force in late 2024. The regulation sets out a structured transition architecture with key dates running through 2026 and beyond, giving economic operators a defined window to migrate from the old framework to the new one without triggering market disruption.

1.1 Key Dates Every Practitioner Must Know

The regulation establishes a layered transition calendar. Entry into force triggers the start of the clock for many obligations, but the critical practical deadline for most manufacturers is the date from which the new rules become mandatory for placing products on the market. During the transition window — broadly spanning 2025 through mid-to-late 2026 depending on product family and harmonised standard status — economic operators may choose to comply with either the old or the new regime, but they cannot mix and match obligations selectively within the same product file. Once the transition deadline passes, compliance with CPR 2024/3110 is no longer optional: it is the only lawful basis for CE marking and market access across the EU internal market.

1.2 Relationship with Harmonised Standards and ENs

Harmonised standards developed under the mandate of CPR 305/2011 remain valid during the transition period provided they are still listed in the Official Journal. However, the European standardisation organisations CEN and CENELEC have received new mandates under CPR 2024/3110 to revise or replace those standards to reflect updated essential characteristics, sustainability requirements, and digital documentation norms. Practitioners should track the Official Journal regularly and subscribe to CEN’s work programme notifications, because a harmonised standard losing its presumption of conformity reference mid-transition can invalidate CE markings that rely on it.

2. What Actually Changes: Core Differences Between CPR 305/2011 and CPR 2024/3110

Before drafting your transition plan, you need a clear picture of the substantive changes. Not everything is new — many fundamental concepts carry over — but several areas represent genuine paradigm shifts that require investment in processes, documentation systems, and technical knowledge.

2.1 Expanded Essential Characteristics and Sustainability Requirements

CPR 2024/3110 significantly expands the scope of essential characteristics beyond the seven basic requirements for construction works established under CPR 305/2011 (mechanical resistance and stability; safety in case of fire; hygiene, health and environment; safety and accessibility in use; protection against noise; energy economy and heat retention; sustainable use of natural resources). The recast adds explicit requirements for climate resilience, carbon footprint declaration, recycled content, and end-of-life management. For manufacturers of structural concrete products, insulation materials, windows, doors, and cladding systems, this means your Declaration of Performance will need to address characteristics that did not previously exist in your product family standard. Updating your technical file and DoP template to accommodate these new fields is not trivial — it requires engagement with your notified body or technical assessment body well ahead of the 2026 deadline.

2.2 Digital Product Passport and QR Code Requirements

One of the most operationally significant innovations in CPR 2024/3110 is the introduction of the Digital Product Passport (DPP) concept for construction products. Rather than relying solely on paper or PDF Declarations of Performance, manufacturers will be required to make key product information — including performance data, hazardous substance information, sustainability metrics, and maintenance instructions — accessible via a digital link, typically a QR code affixed to the product or its packaging. The DPP requirements phase in progressively, with the implementing acts specifying exactly which product families and which data fields are in scope for each phase. Manufacturers must begin assessing their product information management systems now to determine whether they can generate and maintain DPP-compliant records by the relevant deadline.

2.3 Revised Conformity Assessment Systems

CPR 305/2011 used a system of Assessment and Verification of Constancy of Performance (AVCP) levels numbered 1, 1+, 2+, 3, and 4. CPR 2024/3110 retains a similar architecture but introduces refinements to the criteria used to assign products to each level, places greater emphasis on market surveillance-friendly documentation, and clarifies the roles and responsibilities of notified bodies during factory production control audits. If your product was previously assessed under AVCP Level 3 or 4 based on manufacturer’s self-declaration, review the new regulation’s delegated act schedule carefully — some product categories may be elevated to require third-party involvement.

2.4 Obligations for Importers and Distributors

CPR 305/2011 placed the overwhelming majority of compliance obligations on the manufacturer. CPR 2024/3110 introduces a more graduated supply chain responsibility model, explicitly addressing the obligations of importers placing non-EU products on the EU market and distributors making products available to end users. Importers must now verify that the manufacturer has fulfilled their obligations before placing a product on the market — this is not a formality but an active due diligence duty with associated liability. Distributors must check that products bear the CE marking, are accompanied by a valid DoP, and include the required language-specific information for the Member State of sale.

3. Step-by-Step Transition Plan for Manufacturers

The following sequence gives a practical framework for manufacturers working through the 2026 transition. Timelines will vary depending on product complexity, notified body capacity, and the status of relevant harmonised standards, but the logical order of activities applies broadly.

3.1 Phase 1: Gap Analysis and Product Family Mapping (Complete by Q1 2025)

Begin by auditing every product family for which you currently hold CE marking under CPR 305/2011. For each product, document the harmonised standard or European Technical Assessment on which CE marking is based, the AVCP level applied, the current Declaration of Performance structure, and the notified body (if any) involved. Then map each product against the new requirements of CPR 2024/3110 to identify gaps in essential characteristics coverage, documentation format, and digital information requirements. This gap analysis is the foundation of your entire transition plan — skipping it or performing it superficially will result in costly rework later.

3.2 Phase 2: Technical File and DoP Template Revision (Q1–Q3 2025)

Once gaps are identified, begin revising your technical files and DoP templates. For products covered by a harmonised standard that has already been revised under the new mandate, use the updated EN as your reference. For products still covered by the old standard, work with your notified body to determine whether performance testing already on file is sufficient or whether additional testing is required to address new essential characteristics. Pay particular attention to environmental and sustainability declarations — if your product will need to declare carbon footprint or recycled content, you may need to commission an Environmental Product Declaration (EPD) in accordance with EN 15804 and the relevant product category rules.

3.3 Phase 3: Notified Body Engagement and Re-assessment (Q2–Q4 2025)

Notified bodies are already experiencing capacity pressure as the 2026 deadline approaches. Contact your existing notified body early to discuss the scope of re-assessment work required for your products. For products moving from AVCP Level 3 or 4 to a level requiring notified body involvement, you will need to contract a new third-party relationship. Allow sufficient lead time: notified body audit slots and Initial Type Testing (ITT) capacity will become scarce in the second half of 2025 and early 2026 as the industry converges on the same deadline.

3.4 Phase 4: Digital Infrastructure Setup (Q3 2025–Q2 2026)

Assess your current product information management systems against the Digital Product Passport requirements. For manufacturers with large, complex product catalogues, this may require investment in new software or integration with existing ERP systems. At minimum, you will need a stable URL or QR code system that can serve up-to-date product data for each product variant and that can be updated if performance characteristics change after initial market placement. Test your digital infrastructure with a pilot product family before rolling out across your full catalogue.

3.5 Phase 5: Internal Training and Procedure Updates (Q4 2025–Q1 2026)

Compliance with CPR 2024/3110 is not solely a legal or technical function — it touches production, quality management, sales, marketing, and supply chain teams. Update your internal procedures, quality management system documentation, and training materials to reflect the new obligations. Ensure that staff responsible for factory production control, DoP management, and customer-facing technical documentation understand what has changed and what is expected of them under the new regime.

4. Transition Obligations for Importers

Importers occupying the role of economic operator under CPR 2024/3110 face a particularly challenging transition because their compliance is structurally dependent on the actions of their non-EU suppliers. A manufacturer in a third country who has not updated their technical documentation, testing basis, or DoP format to comply with CPR 2024/3110 effectively blocks the importer from lawfully placing that product on the EU market after the transition deadline.

Practical action for importers includes issuing formal compliance questionnaires to all third-country suppliers, incorporating CPR 2024/3110 compliance clauses into supply contracts, establishing a regular review cycle for supplier technical documentation, and building contingency time into procurement timelines to accommodate delays in supplier compliance. Where a supplier is unable or unwilling to meet the new requirements in time, importers must decide whether to source from an alternative supplier or temporarily remove the product from their EU offering.

5. European Technical Assessments: Transition for Non-Harmonised Products

Products not covered by a harmonised standard can be CE marked on the basis of a European Technical Assessment (ETA) issued by a Technical Assessment Body (TAB) designated under the regulation. CPR 2024/3110 updates the ETA framework in several respects, including revised European Assessment Documents (EADs) that must be updated to reflect new sustainability and digital documentation requirements.

5.1 Validity of Existing ETAs During Transition

Existing ETAs issued under CPR 305/2011 remain valid during the transition period. However, if an ETA is due for renewal — ETAs typically have a five-year validity — the renewal process will be conducted under the new framework. Holders of ETAs approaching renewal should proactively engage their TAB to understand how the renewal scope will be affected by CPR 2024/3110 requirements, particularly in relation to new sustainability characteristics and digital information obligations.

5.2 New Product Families and New EAD Development

For genuinely novel construction products that require a new EAD, the CPR 2024/3110 process introduces updated timescales and coordination mechanisms among TABs. The Organisation of Technical Assessment Bodies (EOTA) publishes current EAD development status, which should be the first reference for manufacturers seeking ETA routes for new products.

6. Market Surveillance and Enforcement: What Gets Stricter in 2026

One of the most consequential changes in CPR 2024/3110 for economic operators who have historically relied on light-touch enforcement is the strengthening of market surveillance mechanisms. The regulation explicitly aligns with Regulation (EU) 2019/1020 on market surveillance and compliance of products, which established a horizontal framework for stronger enforcement coordination across the EU.

Under CPR 2024/3110, national market surveillance authorities have clearer powers to request technical documentation, conduct product testing, issue corrective orders, and share information across borders through the Safety Gate rapid alert system. The regulation also introduces stricter rules on economic operators’ cooperation with surveillance authorities, including obligations to maintain traceability records for a defined period after the last product placement. Manufacturers and importers should review their record retention practices — technical files, test reports, DoPs, factory production control records — against the retention periods specified in the regulation and ensure these are retrievable in a format that supports rapid response to a surveillance authority request.

7. Practical Example: A Window Manufacturer’s Transition Journey

Consider a mid-sized German manufacturer of aluminium-framed windows currently CE marked under EN 14351-1:2006+A2:2016, with AVCP Level 3. Their current DoP covers thermal transmittance (Uw value), air permeability, watertightness, wind load resistance, and acoustic performance. They self-declare performance through Initial Type Testing conducted by an accredited laboratory, with no notified body involvement.

Under CPR 2024/3110 and the revised harmonised standard being developed under the new mandate, this manufacturer will need to address several new dimensions. First, the revised EN for windows is expected to include a carbon footprint declaration requirement, meaning they will need an EPD aligned with EN 15804. Second, the Digital Product Passport requirement will oblige them to create a scannable QR code for each product variant linking to a data record that includes performance values, hazardous substance information (particularly relevant for surface coatings and sealants), and end-of-life recyclability data. Third, if the revised standard or delegated act elevates their product category to AVCP Level 1 or 1+, they will need to contract a notified body for surveillance of factory production control and potentially for ITT witnessing.

This manufacturer’s realistic timeline means beginning EPD development in early 2025 (a process that typically takes six to twelve months including data collection and third-party verification), initiating notified body scoping discussions by mid-2025, and completing IT system updates for QR code generation and DPP data management by Q1 2026. Starting any of these workstreams after Q3 2025 would put them at serious risk of missing the transition deadline and facing a period during which they cannot lawfully CE mark and ship product to EU markets.

8. Staying Current: Resources, Monitoring, and Professional Development

The regulatory landscape surrounding CPR 2024/3110 will continue to evolve throughout 2025 and 2026 as delegated acts, implementing acts, and revised harmonised standards are published. Practitioners who rely on point-in-time knowledge acquired in 2024 will find themselves working with outdated information by the time the transition deadline arrives.

The European Commission’s NANDO (New Approach Notified and Designated Organisations) database is the authoritative source for checking notified body designations. The Official Journal of the EU is the definitive reference for harmonised standard references and their withdrawal dates. CEN’s work programme portal provides visibility into the status of standard revision projects. EOTA’s website tracks EAD development. National standardisation bodies — DIN, BSI, AFNOR, UNI, and their counterparts — typically provide early access to draft standards for comment, which is a valuable way to anticipate how your product assessment requirements will change before the final standard is published.

Professional associations such as the Construction Products Europe (CPE) trade federation publish guidance notes and organise stakeholder seminars on CPR transition topics. Engaging with these networks accelerates practical knowledge acquisition and provides early warning of implementation challenges that may affect your product category specifically.

Summary

The 2026 transition deadline under CPR 2024/3110 is not an abstract regulatory milestone — it is a hard boundary that separates lawful market access from non-compliance for every construction product currently CE marked under the old framework. The changes introduced by the recast are substantive: new sustainability and environmental characteristics, Digital Product Passport requirements, reinforced supply chain obligations for importers and distributors, and stronger market surveillance enforcement. Manufacturers who begin their transition planning now — with structured gap analyses, early notified body engagement, EPD development, and digital infrastructure investment — will complete the journey with manageable workload and cost. Those who delay until 2026 will face capacity bottlenecks, rushed technical work, and the real possibility of gaps in their ability to legally place products on the EU market. The roadmap is clear; the timeline is tight; the action must start today.

Frequently Asked Questions

Q1: Can I continue to use my existing CE marking and Declaration of Performance after the 2026 transition deadline if my product has not changed?

No. Once the mandatory application date of CPR 2024/3110 has passed, CE marking must be based on the new regulation regardless of whether the product itself has changed. Your existing DoP format, essential characteristics coverage, and conformity assessment basis must all be reviewed and updated to comply with CPR 2024/3110. Products placed on the market after the transition deadline with CE marking based solely on CPR 305/2011 documentation will be considered non-compliant and subject to market surveillance action. The fact that the product is physically unchanged does not extend the validity of the old compliance basis.

Q2: What happens to products already in stock or in the distribution channel when the transition deadline passes?

CPR 2024/3110 includes provisions for products lawfully placed on the market under CPR 305/2011 before the transition deadline to continue to be made available and used without requiring re-compliance. However, the precise conditions — including what constitutes “placed on the market” and what documentation must accompany stock already in the distribution chain — depend on the specific implementing and delegated acts. Manufacturers and distributors should document their stock positions and placement dates carefully as the deadline approaches. This distinction between “placing on the market” (manufacturer’s act) and “making available on the market” (distributor’s act) is legally significant and should be reviewed with your legal counsel for specific product situations.

Q3: Are there different transition deadlines for different product families?

Yes. The transition calendar is not uniform across all construction products. Some product categories with revised harmonised standards published early will have earlier mandatory application dates for those new standards. Products in categories where harmonised standard revision is delayed may have extended periods during which they can continue to rely on old standards. Additionally, the Digital Product Passport requirements are being phased in by product family through implementing acts, meaning some manufacturers face DPP obligations earlier than others. Practitioners must track the Official Journal references specific to their product category and should not assume that a deadline applicable to another product sector applies to their own.

Q4: How does CPR 2024/3110 affect products covered by European Technical Assessments rather than harmonised standards?

Products CE marked on the basis of European Technical Assessments are also subject to the new regulation. Existing ETAs issued under CPR 305/2011 remain valid for their stated duration during the transition period. However, the ETA framework is updated under CPR 2024/3110, and ETAs coming up for renewal will be processed under the new regime, potentially requiring coverage of new characteristics including sustainability and digital information requirements. Holders of ETAs should review their ETA expiry dates against the transition timeline and engage their Technical Assessment Body early if renewal falls within or shortly after the transition window. New ETA applications after the transition deadline must be based entirely on CPR 2024/3110 procedures and the updated European Assessment Documents.

Q5: What are the specific obligations of an importer under CPR 2024/3110 that did not exist under CPR 305/2011?

CPR 2024/3110 significantly expands importer obligations compared to the previous framework. Importers must now actively verify, before placing a product on the market, that the non-EU manufacturer has carried out the appropriate conformity assessment procedure, that the technical documentation exists and is accessible, that the product bears the CE marking and is accompanied by a valid Declaration of Performance, and that the manufacturer has fulfilled all product information and labelling requirements. Importers must keep a copy of the DoP for ten years after placing the product on the market and must ensure that storage and transport conditions do not jeopardise the product’s compliance with its declared performance. If an importer has reason to believe a product does not comply, they must not place it on the market and must inform the manufacturer and market surveillance authorities. These are active, ongoing compliance duties — not a one-time check at the point of purchase.

Q6: Do small and medium-sized enterprises (SMEs) get any special treatment or extended deadlines under CPR 2024/3110?

CPR 2024/3110 acknowledges the challenges that SMEs face in implementing the new requirements and includes proportionality considerations in several areas, particularly in relation to documentation burdens and the phased application of Digital Product Passport requirements. Some implementing acts are expected to include SME-specific thresholds or simplified procedures for lower-volume or lower-risk product categories. However, SME status does not exempt a manufacturer from the fundamental obligation to CE mark products in compliance with the regulation by the applicable transition deadline. SMEs should actively engage with their national standardisation body, trade association, or Enterprise Europe Network contact point to access guidance, capacity-building resources, and any sector-specific guidance notes that address their particular situation.

Q7: How should a manufacturer handle the situation where the revised harmonised standard for their product is not yet published by the time the transition deadline arrives?

This is a practically important scenario that the Commission has addressed in previous transitions and is expected to address again through transitional provisions or specific safeguard clauses in implementing acts. Where a revised harmonised standard is not yet available — meaning it has not yet been cited in the Official Journal with a presumption of conformity reference — manufacturers may generally continue to apply the existing harmonised standard or, for products without any applicable standard, the ETA route, until the new standard becomes available and its transition period expires. The critical action is to monitor the Official Journal and CEN work programme actively so that you are not caught by surprise when a new reference is published. Building a relationship with your notified body and trade association for early warning of standard publication is essential risk management in this area.