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Across 9 modules • Updated Jul 26, 2026
Author
Sorena AI
Published
May 9, 2026
Updated
Jul 26, 2026
When does used or modified machinery need a new conformity assessment?

What changes when the answer is yes?

If the event is first EU placing on the market, first EU putting into service, or a substantial modification by a person who is not excluded from manufacturer status under Article 18, the responsible person cannot simply annotate the old file. For machinery and related products, Article 10 requires design and construction in line with Annex III, technical documentation under Annex IV Part A, the relevant Article 25 conformity assessment procedure, an EU declaration of conformity, CE marking, instructions, and retention of the technical documentation and declaration for market surveillance authorities.

For partly completed machinery, the evidence route is different: Article 11 points to Annex IV Part B technical documentation, an EU declaration of incorporation, and assembly instructions. Do not replace that with a machinery declaration unless the product has become complete machinery or a related product.

  • Update the technical documentation, risk assessment, drawings, calculations, test records, standards mapping, safety-control evidence, software or programming-logic evidence where relevant, instructions, and declaration affected by the change.
  • Use Article 25 to select the procedure: Annex I Part A categories require notified-body routes; Annex I Part B categories can use internal production control only when the applicable harmonised standards or common specifications cover all relevant essential health and safety requirements; non-Annex I machinery uses module A.
  • Keep the old evidence linked but clearly mark what remains valid, what was superseded, and what was newly assessed for the modified configuration.
Citations
Regulation (EU) 2023/1230 on machinery

Articles 10, 11, 18, and 25 ground the manufacturer obligations, partly completed machinery evidence, substantial-modification responsibility, and conformity assessment choices.

When does used or modified machinery need a new conformity assessment?

What evidence should market surveillance be able to follow?

The record should let a market surveillance authority or decision owner see why the machine was treated as resale, first EU use, ordinary repair, planned update, or substantial modification. The evidence should not be a generic compliance statement; it should tie the actual modification to the legal test and the updated risk assessment.

Regulation (EU) 2023/1230 requires manufacturers to keep technical documentation and declarations available to market surveillance authorities for at least 10 years after machinery is placed on the market or put into service. Regulation (EU) 2019/1020 gives market surveillance authorities powers to require corrective action and, where risks persist, restrict, withdraw, or recall products.

  • Keep the original declaration, instructions, serial or type identification, import or resale documents, and evidence of first EU placing on the market or first EU putting into service.
  • For modifications, keep a dated change description, substantial-modification analysis, risk assessment, affected EHSRs, standards or specifications used, tests, safety-control verification, software version evidence, updated instructions, declaration, and CE-marking decision.
  • For authority readiness, keep the accountable economic operator, customer or site location, corrective-action log, complaint or incident links, and the file index showing where technical documentation can be made available.
Citations
When does used or modified machinery need a new conformity assessment?

Common mistakes in used and modified machinery decisions

Most errors come from skipping the boundary question. A team treats a used machine as automatically exempt, or treats every repair as a new machine, without documenting first EU use, the manufacturer's planned configuration, and whether the modification actually creates a new hazard or increases an existing risk.

The other frequent problem is evidence drift: the old declaration, old test report, or supplier file may still matter, but it does not prove the modified configuration unless the changed hazards, safety functions, instructions, and conformity route have been reassessed.

  • Do not call a change non-substantial without checking both safety impact and the protective measures required by the Regulation's definition.
  • Do not use a declaration for partly completed machinery as if it were a declaration of conformity for complete machinery.
  • Do not ignore digital changes: software, safety components, control logic, and cybersecurity-related safety effects can be part of the modification analysis.
Citations
When is a notified body needed under the EU Machinery Regulation?

When does Annex I require a notified body?

Start with Annex I. Part A covers categories that must use one of the third-party routes in Article 25(2): EU type-examination followed by conformity to type, full quality assurance, or unit verification. Those routes involve a notified body.

Part B gives manufacturers more room, but not always a self-assessment route. Article 25(3) allows internal production control only when the machinery or related product is designed and constructed in accordance with harmonised standards or common specifications specific to that category and covering all relevant essential health and safety requirements. If that coverage is missing or only partial, the manufacturer must use EU type-examination, full quality assurance, or unit verification.

If the product is not listed in Annex I, Article 25(4) points to internal production control. A notified body may still be useful commercially or technically, but the Regulation route itself is not the reason unless another applicable EU act requires it.

Notification is scope-specific. Confirm the body's listing for Regulation (EU) 2023/1230, the relevant product category, and the selected module before contracting; accreditation, an older Machinery Directive notification, or a general testing capability does not by itself establish authority for the new Regulation route.

The Article 25 routes apply from 20 January 2027. Before that date, determine the applicable Machinery Directive procedure for the product being placed on the market and confirm the body's notification under that legislation; a Regulation notification should not be used to rewrite the legal basis for an earlier placement.

  • Annex I Part A includes removable mechanical transmission devices and guards, vehicle servicing lifts, portable cartridge-operated fixing and impact machinery, certain machine-learning safety components, and machinery embedding such systems where they have not been placed independently on the market, in respect only of those systems.
  • Annex I Part B includes listed woodworking and meat-processing saws, certain presses, moulding machinery, underground machinery, refuse trucks with compression mechanisms, lifting devices over 3 m fall hazard, protective devices, safety logic units, ROPS, and FOPS.
  • Substantial modification can put the person making the modification into the manufacturer role, including the duty to apply the relevant Article 25 route.

When is a notified body needed under the EU Machinery Regulation?

For Regulation (EU) 2023/1230, which applies from 20 January 2027, use Annex I and Article 25. A notified body is required for Annex I Part A products because the available routes are EU type-examination plus conformity to type, full quality assurance, or unit verification. For Annex I Part B, internal production control is available only when the product is designed and constructed using category-specific harmonised standards or common specifications that cover all relevant essential health and safety requirements; otherwise a notified-body route is needed.

Can a manufacturer self-assess an Annex I Part B machine?

Yes, but only on the Article 25(3) condition: the machine must be designed and constructed under harmonised standards or common specifications specific to that Annex I Part B category and covering all relevant EHSRs. If the standard set does not cover all relevant EHSRs, or if the manufacturer uses another technical solution for uncovered requirements, use Module B plus C, Module H, or Module G.

Does a notified body take over the manufacturer's responsibility?

No. The manufacturer still owns the risk assessment, technical documentation, conformity route selection, EU declaration of conformity, CE marking, production controls, and change monitoring. The notified body assesses the defined module: design/type under Module B, the quality system under Module H, or the individual unit under Module G.

Citations
When is a notified body needed under the EU Machinery Regulation?

How should a manufacturer find a notified body?

Use the EU Single Market Compliance Space notified-bodies search by legislation. Select Regulation (EU) 2023/1230 on machinery, then check bodies notified for the legislation and the relevant conformity-assessment activity before approaching one.

Do not treat a general certificate, test lab report, or consultant statement as a notified-body approval. The body should be notified for the machinery legislation and the assessment route you need, and its identification number should match the body named in the certificate, quality-system decision, unit-verification certificate, or EU declaration entry.

Keep a dated lookup record because notification scope can change. If a notified body is suspended, restricted, withdrawn, or ceases activity, the Regulation assigns follow-up handling to notifying authorities, but the manufacturer still needs a usable conformity record for the product.

  • Search the Single Market Compliance Space by legislation and choose Regulation (EU) 2023/1230 on machinery.
  • Check the notified body's legal name, identification number, country, legislation, and assessment scope against the module being used.
  • Retain the lookup date, body profile, certificate or decision reference, and the product models or category covered.
Citations
When is a notified body needed under the EU Machinery Regulation?

What does the notified body assess?

Under Module B, the notified body examines the technical design, reviews technical documentation, checks representative specimens where required, and issues or refuses an EU type-examination certificate. The manufacturer then uses Module C to keep production in conformity with the approved type.

Under Module H, the notified body assesses the manufacturer's quality system, including design controls, product quality responsibilities, examinations, tests, records, and monitoring. It also performs surveillance through audits and may make unexpected visits.

Under Module G, the notified body examines and tests the individual machinery or related product, or has tests carried out, and issues a certificate for the examinations and tests performed. This is not a blanket approval for future variants.

  • Module B output: EU type-examination certificate and any additions or review actions tied to the approved type. The notified body draws up the evaluation report but releases its content, in full or in part, only with the manufacturer's agreement.
  • Module H output: quality-system approval decision, audit reports, visit reports, test reports where applicable, and decisions on quality-system changes.
  • Module G output: certificate for the unit and the notified body's identification number on the approved machinery or related product.
Citations
When is a notified body needed under the EU Machinery Regulation?

What must the manufacturer still own?

A notified-body certificate is not the whole compliance file. The manufacturer must still demonstrate that the product meets the applicable essential health and safety requirements in Annex III, draw up technical documentation, issue the EU declaration of conformity, affix the CE marking, and keep required records available for market surveillance.

Technical documentation should show the intended use, risk assessment, applicable EHSRs, protective measures, residual risks, drawings, standards or common specifications applied, other technical specifications used for uncovered requirements, test and inspection results, and production controls.

Changes matter after the first assessment. The manufacturer must account for changes in design, production, characteristics, harmonised standards, technical specifications, or common specifications. For Module B, modifications affecting conformity or certificate validity require additional notified-body approval.

  • Keep the Annex I classification and Article 25 route rationale with the technical file.
  • Keep the standards or common-specifications coverage map, including any partial application or uncovered EHSRs.
  • Keep notified-body certificates, decisions, audit reports, test reports, and correspondence linked to the exact model, type, unit, or quality system.
  • Reassess the route after material design, software, safety-function, production, supplier, standard, or intended-use changes.
Citations
Regulation (EU) 2023/1230 on machinery

Articles 10, 20, 21, 24, 25 and Annex IV define manufacturer duties, presumption of conformity, declarations, CE marking, route selection, and technical documentation.

Which Article 25 conformity assessment module applies?

Which conformity assessment module applies under Article 25?

Article 25 does not ask teams to choose a module by preference. It first separates machinery and related products into Annex I Part A, Annex I Part B, or not listed in Annex I, then limits the available conformity assessment procedures for that route.

For Annex I Part A, the available procedures are EU type-examination under Module B followed by conformity to type based on internal production control under Module C, full quality assurance under Module H, or unit verification under Module G. Module A alone is not available for Part A categories.

For Annex I Part B, Module A is available only if the manufacturer designs and constructs the product in accordance with harmonised standards or common specifications specific to that category and covering all relevant essential health and safety requirements. If that condition is not met, the manufacturer must use Module B plus C, Module H, or Module G.

Make the route decision for the actual product configuration. A standard listed in the Official Journal is not enough by itself: the file must show that the standard is specific to the Part B category, was applied to the product, and covers every relevant EHSR. A deviation or uncovered requirement can remove the Module A option.

Article 25 and these module routes apply from 20 January 2027. For products placed on the market before that date, record the Machinery Directive route and first-placement date; Article 52 protects products lawfully placed under the Directive before the cutoff.

  • Use Module A for products not listed in Annex I, and for Annex I Part B only when the Article 25 standards or common-specification condition is met.
  • Use Module B plus C when a notified body examines the type and the manufacturer then controls production to keep manufactured products aligned with the approved type.
  • Use Module H when the conformity route is based on an approved full quality assurance system under notified-body surveillance.
  • Use Module G when conformity is assessed by unit verification for the individual machinery or related product.

Which conformity assessment module applies under Article 25 of the Machinery Regulation?

For Regulation (EU) 2023/1230, which applies from 20 January 2027, classify the product against Annex I first. Annex I Part A requires Module B plus C, Module H, or Module G. Annex I Part B allows Module A only when the relevant harmonised standards or common specifications fully cover the applicable essential health and safety requirements for that category; otherwise use Module B plus C, Module H, or Module G. If the category is not listed in Annex I, use Module A.

Does every Article 25 route require a notified body?

No. Module A is internal production control and is a manufacturer route. Module B, Module H, and Module G involve a notified body, and Module C follows a Module B EU type-examination certificate. Annex I Part A always points to notified-body routes; Annex I Part B does so when Module A is unavailable because the standards or common specifications do not fully cover the relevant EHSRs.

What evidence should support the Article 25 module decision?

Keep the Annex I classification, the list of applicable EHSRs, the harmonised standards or common specifications applied and whether they were fully or partially applied, risk assessment records, design and manufacturing drawings, test or inspection results, production-control evidence, and any notified-body certificate, quality-system approval, audit report, or unit-verification certificate used for the chosen route.

Citations
Regulation (EU) 2023/1230 on machinery

Article 25 sets the Module A, Module B plus C, Module H, and Module G routes; Articles 52 and 54 establish the pre-20 January 2027 transition and application date.

Which Article 25 conformity assessment module applies?

How do Annex I categories change the route?

Annex I Part A contains the categories that trigger Article 25(2), including removable mechanical transmission devices and their guards, vehicle servicing lifts, portable cartridge-operated fixing and other impact machinery, certain machine-learning safety components, and machinery with embedded self-evolving machine-learning systems ensuring safety functions that have not been placed independently on the market, in respect only of those systems.

Annex I Part B contains categories that trigger Article 25(3). The practical difference is that Part B can still use Module A when the relevant harmonised standards or common specifications fully cover the applicable EHSRs for the category. If the product departs from that coverage, uses only partial coverage, or relies on other technical specifications for relevant requirements, the Article 25 route shifts to a notified-body route.

  • Record the exact Annex I Part A or Part B item relied on, not just a general label such as high-risk machinery.
  • For Part B, attach the standards or common specifications matrix showing which EHSRs are covered and where coverage is only partial.
  • For machine-learning safety functions, separate the Annex I classification from any wider AI governance analysis; Article 25 still requires the machinery conformity route to be documented.
Citations
Which Article 25 conformity assessment module applies?

What does the notified body do in each route?

In Module B, the notified body examines the technical design, reviews the technical documentation, examines a representative specimen, checks use of harmonised standards or common specifications, and issues or refuses an EU type-examination certificate. Module C is then the manufacturer's production-control step against that approved type.

In Module H, the notified body assesses and approves the manufacturer's quality system, monitors it through surveillance, and its identification number accompanies the CE marking under that module. In Module G, the notified body carries out or has carried out examinations and tests for the individual unit and issues a certificate for those examinations and tests.

Use the notified-body database to confirm that the body is notified for the relevant machinery legislation and scope. A voluntary certificate from a body acting outside its notified scope is not a substitute for the Article 25 procedure.

  • For Module B plus C, keep the EU type-examination certificate, certificate conditions, additions or renewals, and production controls showing conformity to the approved type.
  • For Module H, keep the quality-system documentation, approval decision, change approvals, periodic audit reports, unexpected-visit reports, and test reports where relevant.
  • For Module G, keep the unit technical documentation, notified-body examination and test evidence, the unit-verification certificate, and the notified-body identification-number record.
Citations
Which Article 25 conformity assessment module applies?

What should the technical file show?

The technical documentation should make the Article 25 route auditable. It should show the intended use, applicable EHSRs, risk assessment, protective measures, residual risks where relevant, drawings and schemes, standards or common specifications applied, other technical specifications used where standards are not fully applied, and reports or results from calculations, tests, inspections, and examinations.

The evidence set should also connect the selected module to the declaration and marking package. For Module A, that means the technical documentation, production-control evidence, CE marking, and EU declaration of conformity. For notified-body routes, add the relevant certificates, approvals, reports, and notified-body identification-number evidence required by the chosen module.

  • Do not treat an Annex I classification memo as the technical file; it is only the route-selection record.
  • Do not use Module A for Annex I Part B unless the file shows full coverage by category-specific harmonised standards or common specifications for all relevant EHSRs.
  • Do not rely on a certificate without checking the notified body's legislation and scope, the certificate conditions, and whether product changes or state-of-the-art changes affect the approval.
Citations
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