SORIVO Engineering · Codes & Compliance · European Union

EN 50575 & the New CPR Era (EU 2024/3110): Cable Importer's Compliance Checklist

The Construction Products Regulation has changed; the cable standard hasn't — at least not in anything we could verify. A working separation of confirmed framework dates from unverifiable "EN 50575:2025" chatter, plus the document chain an EU border official or project specifier actually screens.

Published 30 Aug 2026 · Updated 31 Aug 2026 · Reviewed by Luo Qiang

Sheet04
Basis TextsEU 2024/3110 · EN 50575
Issued / Rev.2026-08-31 · C
Checked ByL. QIANG
Direct Answer The revised Construction Products Regulation, EU 2024/3110, entered into force on 7 January 2025 and its main provisions apply from 8 January 2026, replacing CPR 305/2011 through a staged transition that moves product family by product family. Cables remain covered by EN 50575 — reaction classes Aca through Fca, with the s/d/a sub-classifications appearing on the B2ca-to-Dca range — and by AVCP systems assigned per declared class rather than one uniform regime. What has NOT been confirmed by any official source: the "EN 50575:2025" edition and its reported 1 January 2027 mandatory marking date, which currently trace to a single industry summary of a draft revision. Importers should anchor their 2026–2027 compliance work on the confirmed CPR framework and treat the 2027 rumor as a watch item, not a deadline.

If you import cable into the EU — as a distributor, a brand owner, or a project purchaser — you've probably seen headlines this year about a "new EN 50575" and a January 2027 marking deadline. Some of what's circulating is solid. Some isn't. This article separates the two, then gives you a working checklist for the documents that actually get screened at EU borders and by project specifiers.

01Where the Rules Actually Stand Right Now

Start with the framework, because this is where most confusion lives. There are two layers: the regulation (the CPR itself, which sets the legal machinery) and the harmonised standard (EN 50575, which defines how cables prove fire performance under it).

Two layers: the Construction Products Regulation above, the harmonised standard below The upper layer is Regulation EU 2024/3110, the legal machinery, in force since 7 January 2025 and applying from 8 January 2026 with Article 92 transitions from 8 January 2027. The lower layer is EN 50575, the harmonised standard for cables, mandatory since 1 July 2017 and still in use; no replacement edition has been confirmed. FIG. 1 · TWO LAYERS, TWO CLOCKS — MOST HEADLINES MIX THEM UP governs LAYER 1 · THE REGULATION — CHANGED Regulation (EU) 2024/3110 — the legal machinery: what must be declared, by whom, and with what paperwork LAYER 2 · THE HARMONISED STANDARD — UNCHANGED FOR CABLES EN 50575 — how cables prove reaction to fire. Valid for this product family until a new one replaces it. in force · 7 Jan 2025 applies · 8 Jan 2026 Art. 92 from · 8 Jan 2027 mandatory for cables · 1 Jul 2017 replacement edition · none confirmed "EN 50575:2025" · unverified The regulation layer is settled and dated. The standard layer is where the rumor lives — and nobody has changed that layer for cables. Read the rest of this article with that split in mind: framework facts on one side, product-standard claims on the other.
Fig. 1 — Almost every confusing headline this year is a layer-swap: a real change to the regulation reported as if it were a change to the cable standard.

On the regulation layer, the change is real and dated. The revised Construction Products Regulation EU 2024/3110 was adopted in late 2024, entered into force on 7 January 2025, and its main provisions apply from 8 January 2026. The old CPR 305/2011 isn't switched off overnight — replacement happens family by family, with existing harmonised standards staying valid for a product family until new harmonised technical specifications are published for it. The regulation's transitional provisions (Article 92) apply from 8 January 2027. There is no single blanket transition length in the text, so be wary of any source that quotes one — including a blog.

Confirmed dates versus unverified dates on the CPR timeline A timeline with six dated milestones from July 2017 to 2040, plus one phantom marker for the claimed 1 January 2027 EN 50575:2025 marking date, which sits in the unverified lane. Only the dated milestones corroborated by multiple sources are drawn as confirmed. FIG. 2 · THE DATES, SEPARATED INTO WHAT HOLDS AND WHAT DOESN'T — AXIS NOT TO SCALE 1 Jul 2017 EN 50575 becomes mandatory 18 Dec 2024 2024/3110 in the Official Journal 7 Jan 2025 enters into force 8 Jan 2026 main provisions apply; 305/2011 repealed * UNVERIFIED 1 Jan 2027 "EN 50575:2025" marking claimed — single source 8 Jan 2027 Article 92 transitional provisions 2040 outer edge of coexistence, per one guide confirmed, multi-source confirmed in official-text summaries single-source, unverified single-source framing * Repeal of 305/2011 is subject to Article 92 transitional provisions — the old framework is not switched off overnight. No cable-family transition date has been published. A source quoting one blanket duration offers an interpretation, not a citation. First wave of new harmonised technical specifications: cement, structural steel, fire-resistant glazing, insulation. Cables are not in it.
Fig. 2 — The rumor marker is deliberately pinned to the axis at the position its own claimed date implies. Everything else on this line survives cross-checking; that one does not.
Table 1 · Regulation timeline, with verification status stated per row (Rev. C · 2026-08-31)
DateWhat happened / happensStatus
1 July 2017EN 50575 became mandatory for power, control and communication cables under the original CPRHistorical baseline
18 December 2024EU 2024/3110 published in the Official JournalConfirmed, multi-source
7 January 2025EU 2024/3110 enters into forceConfirmed, multi-source
8 January 2026Main provisions of 2024/3110 apply; 305/2011 repealed subject to Article 92 transitionsConfirmed, multi-source
8 January 2027Article 92 transitional provisions applyConfirmed (official-text summaries)
2026–2028+First product families publish new harmonised technical specifications (cement, structural steel, glazing, insulation — cables not in the first wave)Confirmed, multi-source
"1 January 2027"Reported mandatory date for "EN 50575:2025" marking on LSZH cablesSingle-source draft claim — unverified
2040 (framing)One compliance guide frames the outer edge of the coexistence window as 8 January 2040Single-source framing — not a cable-family deadline

Notice what's missing from the confirmed rows. There is no official cable-family transition deadline, no published EN 50575 revision with a mandatory date, nothing in the Commission's stated first-wave standardisation schedule that touches cables. Keep that in mind for the rumor section below.

02How to Read a Cable Fire Class Under EN 50575

Whether the framework is old CPR or new CPR, the class language on a cable's Declaration of Performance hasn't changed, and every importer should be able to read it fluently. A declaration like B2ca–s1a,d1,a1 decomposes like this:

Anatomy of an EN 50575 class string The declaration B2ca-s1a,d1,a1 broken into four parts: the main reaction class B2ca, followed by the smoke sub-classification s1a, the flaming droplet sub-classification d1, and the acidity sub-classification a1. FIG. 3 · ONE STRING, FOUR STATEMENTS — READ THEM ALL BEFORE YOU ACCEPT A QUOTATION B2ca – s1a , d1 , a1 Four independent declarations compressed into one line. A supplier who gives you only the first token has answered one question of four. MAIN CLASS · B2ca flame spread performance, one of seven rungs (Fig. 4) s · SMOKE PRODUCTION s1 least smoke; s1a / s1b split by acidity; s2, s3 worse d · FLAMING DROPLETS d0 none · d1 · d2. burning polymer falling below a · ACIDITY a1 lowest acid gas · a2 · a3. where LSZH earns its keep Written the way the sources we read write it. Separator style varies; the DoP for your product is the authority on its own class string.
Fig. 3 — "B2ca" alone is a fraction of a declaration. Ask for the full string, then check it against the DoP rather than the price list.
  • The main class (Aca, B1ca, B2ca, Cca, Dca, Eca, Fca) — fire reaction performance, from Aca (highest: effectively non-combustible behaviour) down to Fca (no declared performance). The seven-class ladder runs from "will not contribute to fire" down to "untested or undeclared."
  • s (smoke production) — s1, s2, s3, with s1 the least smoke; some declarations add a further letter (s1a vs s1b) reflecting smoke acidity components.
  • d (flaming droplets) — d0 (none), d1, d2. Melted burning polymer dripping onto anything below is exactly as bad as it sounds.
  • a (acidity) — a1 (lowest acid gas emission), a2, a3. This is where halogen-free (LSZH) constructions earn their keep.
The seven EN 50575 reaction classes and the range across which s/d/a sub-classifications appear A descending ladder from Aca to Fca. A bracket marks the B2ca to Dca range as where the s, d and a sub-classifications appear; Aca is declared without them and Eca and Fca sit below the point where they are required. FIG. 4 · THE SEVEN-RUNG LADDER — AND WHERE THE THREE SUFFIXES ACTUALLY APPLY MILD ╱ NON-COMBUSTIBLE BEHAVIOUR SEVERE ╱ NO DECLARED PERFORMANCE Acanon-combustible B1cavery limited B2calow contribution Ccamoderate Dcaacceptable Ecaentry level Fcaundeclared s / d / a SUB-CLASSES APPLY ACROSS THIS RANGE Aca is declared without the three-part suffix — it is not primarily a flame-spread question. Eca and Fca sit below the point where that sub-classification is required. So "Eca-s1,d0,a1" is padding, not precision. ⚑ Exactly where each suffix starts and stops is reported differently by different summaries — the standard's classification table governs.
Fig. 4 — The ladder is the multi-source part. The suffix bracket is drawn where this article places it; the boundary wording is deliberately left to the standard.

One precision point that blogs routinely get wrong: the s/d/a suffixes belong to the B2ca / Cca / Dca range. Aca is declared without them (it isn't primarily a flame-spread question), and Eca and Fca sit below the point where that three-part sub-classification is required. So a supplier quoting "Eca-s1,d0,a1" is either confused or padding the spec — and secondary summaries disagree on exactly where each suffix starts and stops, so read the classification table in the standard itself rather than trusting a blog. Including this one.

Two practical buying notes. First, the main class is only part of the story — a cable sold as "B2ca" with undeclared s/d/a sub-classes is giving you a fraction of the information a specifier will eventually demand. Second, match the class to the application rather than defaulting to the top: public corridors and escape routes justify B2ca–s1a,d0,a1 territory; general commercial distribution may sit comfortably at Cca or Dca. Our guide to building cable fire compliance walks through matching classes to building types, and the difference between fire reaction (EN 50575) and fire resistance (circuit integrity, e.g. BS 6387 / IEC 60331) trips up enough buyers that we wrote a whole article on fire-resistant vs flame-retardant cables.

03AVCP: Who's Allowed to Say What

Under the Assessment and Verification of Constancy of Performance framework, the higher the claimed class, the more third-party involvement the law requires — and the system is assigned per declared class, not applied uniformly to all cable. At the top of the reaction ladder that means a notified body tests the product type and audits the factory's continuing production control (FPC) as an ongoing surveillance obligation; lower classes run through lighter systems with less notified-body involvement.

Two secondary sources give two different AVCP class-to-system mappings Left panel: one compliance guide places System 1+ across the Aca to Cca band. Right panel: another source assigns System 1+ to B2ca and Cca and System 3 to Dca and Eca. Both agree on the principle that the system follows the declared class and that notified-body involvement rises with the class. The figure declines to pick a winner. FIG. 5 · WHERE THE PUBLISHED SUMMARIES PART COMPANY — WE ARE NOT PICKING A SIDE SUMMARY A — COMPLIANCE-GUIDE WRITE-UP Aca – Cca → System 1+ notified body: Type Test + FPC audit lower classes → lighter systems the wide-mapping reading SUMMARY B — VENDOR EXPLAINER B2ca / Cca → System 1+ Dca / Eca → System 3 notified body involvement still rises with the declared class the narrow-mapping reading VS AGREE: the system follows the declared class, and third-party involvement rises with the class claimed. DISAGREE: which class gets which system — so take it from the product's DoP and the standard's annex, not from a blog paragraph.
Fig. 5 — Showing the disagreement is the useful part. A procurement question that starts "which AVCP system applies" should end "…according to which document".

Where the published summaries part company is the exact mapping. One guide puts System 1+ across the Aca–Cca band; another assigns 1+ to B2ca/Cca and System 3 to Dca/Eca. Both agree on the principle, neither is quotable as a settled table from a secondary source — so take the system from the product's own DoP and the standard's annex, not from a blog paragraph. For procurement, the question that actually matters is upstream of the number anyway: which notified body signed this class, and is its FPC audit current?

For an importer, this translates into a simple screening question: if a supplier offers B2ca cable, which notified body performed the Type Testing and where is the FPC certificate? A datasheet with a class but no notified-body number is a decoration, not a certificate. We covered the general verification discipline for solar cables in our TÜV/UL verification guide — the same logic applies to CPR declarations.

04The Importer's Document Checklist Under the New CPR

The 2024/3110 changes that are confirmed mostly live in paperwork. Here's what to line up with your suppliers now:

The CPR document chain an importer has to keep internally consistent Five linked documents in sequence: the Declaration of Performance with its number, class and AVCP system; the CE marking basis; the notified body Type Test and FPC certificates; the test reports against EN 60332 and EN 61034 methods; and the label on the cable drum. A consistency line runs under all five because the class must be identical in every one. FIG. 6 · THE FIVE DOCUMENTS — AND THE ONE PROPERTY THAT GETS IMPORTERS CAUGHT DoPnumber · class · AVCP CE marking basisstandard cited Notified bodyType Test + FPC cert Test reports60332 / 61034 methods Label on the drummust repeat the DoP one number chain — the class declared in the DoP is the class printed on the drum "Cca" on the label with "Dca" in the DoP is not a typo. It is a market-surveillance finding. Under 2024/3110 the DoP grows into a combined DoP + DoC with sustainability data and, eventually, a Digital Product Passport identifier.
Fig. 6 — Nothing here is new law. What's new is that the paperwork is where the confirmed changes live, and where language obligations land on the importer of record.
  1. DoP, still the core document. Every declared performance needs a Declaration of Performance with a DoP number, the class, the AVCP system, and the manufacturer's details. Under the new regulation it expands into a combined Declaration of Performance and Conformity, adding sustainability information and eventually a Digital Product Passport identifier — phased in by product family, so cables won't flip on day one, but your document templates should be ready to grow a section.
  2. Cross-document consistency. Class stated on the label, in the DoP, in the CE marking context, and in the technical file must match exactly. The Commission has flagged declared-performance accuracy — particularly fire performance, in the post-Grenfell enforcement climate — as a priority. A "Cca" on the label with a "Dca" in the DoP isn't a typo; it's a market surveillance finding.
  3. Notified-body chain. Collect the notified body number, Type Test report references, and FPC certificates. Test reports per EN 50575's referenced methods (the EN 60332 / EN 61034 family for reaction-to-fire sub-characteristics) should be recent enough to trace to the current certificate. Our overview of cable testing standards explains what those methods actually measure.
  4. Language and format obligations. DoPs must be available in the languages required by the member state where the product is placed on the market. If you're the importer of record, that obligation lands on you, not the factory.
  5. Supplier qualification, documented. Make CPR documentation a standing item in supplier audits rather than a per-order scramble — the same structure we recommend in our 12-question supplier qualification checklist.

05The "EN 50575:2025" and "1 January 2027" Question — What We Could and Couldn't Verify

Now the part that motivated this article. Industry summaries circulating since mid-2026 claim the European Commission passed a draft revision (referenced as COM(2026) 412 final, reportedly on 13 July 2026) that would require a new "EN 50575:2025" fire classification marking on LSZH fire-resistant cables from 1 January 2027, with DoP and CE documentation updated in parallel.

Here's our verification result, stated plainly: that claim currently traces to a single industry summary, and it has problems.

A valid EN 50575 class string beside the invalid example used by the circulating summary Left: B2ca-s1a,d1,a1, a valid string using the three additional dimensions smoke, droplets and acidity. Right: the example marking printed by the widely shared summary, B2ca-s1,d0,t0, where the t0 suffix is struck through because EN 50575 has no t classification. FIG. 7 · THE RUMOR'S OWN EXAMPLE DOESN'T PARSE — WHICH IS WHY IT STAYS IN THE RUMOR COLUMN WHAT A VALID STRING LOOKS LIKE B2ca–s1a,d1,a1 three additional dimensions, exactly: s smoke · d droplets · a acidity WHAT THE CIRCULATING SUMMARY PRINTS B2ca-s1,d0, t0 there is no "t" class in EN 50575 — the system has three suffix axes, not four When a claim's own worked example contradicts the system it cites, the burden shifts. That is not proof the claim is false. A real harmonised standard has a CEN number, an OJ citation and a mandate. Ask anyone marketing "EN 50575:2025 compliant" stock for all three.
Fig. 7 — We reproduce the flawed string because the flaw is the evidence. It is quoted from the summary it appears in, not from the standard.
  • No official EU source we checked — the regulation text itself, Commission communications, or the national authorities' CPR guidance — mentions an EN 50575:2025 edition or a 1 January 2027 mandatory date.
  • The widely-circulated summary even quotes an example marking with a "t" suffix — a class designation that does not exist in EN 50575's classification system, which has exactly three additional dimensions (s, d, a). When a rumor's own example doesn't parse, treat the rumor with extra care.
  • The confirmed first wave of new harmonised technical specifications under 2024/3110 covers cement, structural steel, fire-resistant glazing, and insulation. Cables are not in it.
How to handle this in your procurementPut nothing about "EN 50575:2025" or a 2027 deadline into contracts or specifications yet. Instead, (1) monitor the Official Journal and your notified body's announcements for a genuine EN 50575 revision; (2) if you see a supplier marketing "EN 50575:2025 compliant" products today, ask for the standard's identification details — a real harmonised standard has a CEN number, an OJ citation, and a cited mandate; (3) re-check this space quarterly. If the draft becomes law, DoP updates and label changes typically allow a coexistence period — but that period only helps people who already know their document chain is ready.

06Quick Reference: Confirmed Facts vs. Unverified Claims

Table 2 · Separating the framework facts from the product-standard rumor (Rev. C · 2026-08-31)
ItemStatusImporter action
EN 50575 classes Aca–Fca; s/d/a sub-classifications on the B2ca–Dca rangeConfirmed (multi-source); exact suffix boundaries differ between summariesRead classes fluently; specify sub-classes where they apply, and check the standard's table
AVCP assigned per declared class (higher class → notified body Type Test + FPC audit)Principle confirmed; class-to-system mapping differs between sourcesCollect notified body number and FPC certificates from the DoP
EU 2024/3110 in force 7 Jan 2025, applies 8 Jan 2026; Art. 92 transitions from 8 Jan 2027Confirmed (multi-source)Update compliance references from 305/2011 to 2024/3110
DoP expanding to DoP+DoC; DPP identifier phased inConfirmed (multi-source)Prepare document templates; watch cable family's turn
Staged family-by-family transition; old standards valid until that family is replacedConfirmed in mechanism; no blanket duration in the textNo panic re-certification of existing stock
"EN 50575:2025" mandatory marking from 1 Jan 2027Single-source draft claim, unverified; example marking contains an invalid classMonitor OJ / notified bodies; put nothing in contracts yet

Confirmed items above were cross-checked across multiple independent sources including the Commission-side compliance guides and national authority FAQs. The 2027 claim could not be corroborated and is presented as attributed industry reporting. The AVCP class-to-system mapping is drawn from two secondary sources that disagree, so no mapping is asserted here. Verify anything in this article against the Official Journal and the applicable regulation text before contractual use.

07Frequently Asked Questions

Q1

Is EN 50575 still valid under the new CPR (EU 2024/3110)?

Yes. The new regulation replaces the legal framework, but harmonised standards like EN 50575 remain valid for their product families until replaced by new harmonised technical specifications — a staged transition that moves family by family, with no blanket duration stated in the text. Cables are not in the confirmed first wave of new specifications, and no cable-family transition date has been published.

Q2

What fire class does my cable project actually need?

It depends on the building and the installation route, and it's set by the specifier, not the supplier. Escape routes, corridors, and high-occupancy public buildings typically justify B2ca with strong sub-classifications (s1, d0, a1); general commercial circuits may accept Cca or Dca. On those classes, ask for the full class string with its s/d/a sub-classes — a bare main class is an incomplete declaration. (Aca, Eca and Fca are declared without that three-part suffix, so a supplier offering "Eca-s1,d0,a1" is padding or confused.)

Q3

Is the "EN 50575:2025" standard real, and is 1 January 2027 a real deadline?

We could not verify it. The claim traces to a single industry summary of a draft revision, no official EU source confirms an EN 50575:2025 edition or that date, and the summary's own example marking contains a class suffix that doesn't exist in EN 50575's system. Treat it as a watch item and verify against the Official Journal before spending money on "compliance" with it.

Q4

What documents must a cable importer keep on file for CPR compliance?

At minimum: the Declaration of Performance (with its DoP number), the CE marking basis, notified body certificates including the factory production control audit wherever the declared class requires one, Type Test reports traceable to the declared class, and labels that match the DoP exactly. Under the new regulation, expect these to grow into a combined DoP+DoC with sustainability information and, eventually, a Digital Product Passport identifier.

Q5

Do I need to re-certify cable stock bought under the old CPR?

No. Products placed on the market under valid declarations under the previous framework remain covered during the phased transition. What you should do now is confirm your suppliers' documentation chain is complete and consistent — because when each product family's transition date arrives, the companies that already hold clean files move fastest.

Next step

REVIEWING A CPR DOCUMENT PACKAGE BEFORE IT CLEAVES A PROJECT?

Send us the DoP and the drum label. SORIVO will return a class-by-class consistency check across DoP, CE basis, notified-body certificates and test reports — and quote CPR-rated cable with the language obligations met at your member state. Or email sale@sorivocable.com directly.

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Senior cable application engineer at Sorivo
Reviewed by Luo Qiang — Senior Cable Application Engineer, Sorivo
15+ years in industrial and renewable energy cable specification. Experienced in cable specification aligned with IEC standards.
Sources
Regulation (EU) 2024/3110 application dates and mechanism cross-checked across CECheck's compliance guide, Architheca's regulatory note (entry into force 7 Jan 2025, application 8 Jan 2026, Article 92 from 8 Jan 2027), the Belgian Federal Public Service Economy FAQ, and two Chinese-language trade compliance explainers on EN 50575 certification practice. AVCP class-to-system mappings were taken from two of those secondary sources specifically because they disagree (see Fig. 5). The "EN 50575:2025 / 1 January 2027" claim traces to a single self-labeled draft-revision interpretation (SectorBriefingPro) whose example marking contains a class suffix that does not exist in EN 50575; it is reported here as an attributed rumor and nothing in the article relies on it. Regulation (EU) 2024/3110 as published in the Official Journal, and the harmonised standards cited there, remain the texts of record.

Related reading
Building Cable Fire Compliance Guide · Fire-Resistant vs Flame-Retardant Cables · XLPE vs LSZH: What's the Difference · Complete Guide to Cable Testing Standards · Global Cable Certification Guide · Cabling for LEED & BREEAM Certification
This article summarizes published information about the Construction Products Regulation and EN 50575 for general guidance. The governing texts are Regulation (EU) 2024/3110 and the harmonised standards cited in the Official Journal; verify clause-level details before contractual or design use.