| Scope boundary | MSR applies to products subject to Union harmonisation legislation as set out in its scope and annex structure, with specific Article 4 coverage for the listed product-law instruments and any later instrument that refers to Article 4. | The Blue Guide covers the implementation of EU product rules more broadly, including the New Legislative Framework, free movement, actors in the supply chain, conformity assessment, accreditation, CE marking, and market surveillance. | Use MSR to decide whether a market-surveillance or customs rule applies. Use the Blue Guide to explain the underlying product-rule vocabulary and evidence expectations. |
|---|
| Covered actors | MSR Article 4 names the EU-established operator types that can perform Article 4 tasks: EU manufacturer, importer, authorised representative with the right mandate, or EU fulfilment service provider where no earlier operator exists. | The Blue Guide explains manufacturer, authorised representative, importer, distributor, fulfilment service provider, end user, and the Article 4 economic operator in the broader supply-chain model. | Classify the product role under the Blue Guide, then confirm the binding Article 4 operator and contact-details requirement under MSR where Article 4 applies. |
|---|
| Trigger | MSR is directly applicable regulation text for market surveillance and compliance of products. Use it as the binding source for authority powers, Article 4 operator tasks, cooperation duties, border controls, and corrective action. | The Blue Guide is a Commission notice. It supports consistent interpretation, but it expressly says it is guidance and that only the Union harmonisation act has legal force. | Do not cite the Blue Guide as if it creates a standalone duty. Cite MSR or the sector act for the duty, then use the Blue Guide to explain the product-law concept if needed. |
|---|
| Core obligations | MSR Article 6 treats products offered online or through other distance sales as made available on the market when the offer targets end users in the Union. | The Blue Guide explains placing on the market, making available, putting into service where relevant, and substantial modification across Union harmonisation legislation. | For an online offer, record both the MSR Article 6 targeting facts and the Blue Guide product-law analysis of when the product is placed or made available. |
|---|
| Evidence record | MSR Article 4 requires the Article 4 operator to verify that required declarations and technical documentation have been drawn up, keep the declaration available, and ensure technical documentation can be made available to authorities on request. Customs may suspend release for missing documents, marking or labelling issues, false or misleading CE marking, or missing Article 4 operator details. | The Blue Guide explains the manufacturer responsibility for conformity assessment, technical documentation, EU declaration of conformity, instructions and safety information, traceability, and CE marking as the manufacturer declaration of conformity to applicable Union harmonisation legislation. | Use the Blue Guide to build the technical-file and CE/DoC rationale; use MSR to test whether the file can be produced for authorities and whether border-control blockers exist. |
|---|
| Enforcement powers and online-interface measures | MSR gives market surveillance authorities powers to require documents, technical specifications, supply-chain information, website ownership information, samples, inspections, corrective action, withdrawal, recall, market restrictions, and online-interface measures for serious risk where no other effective means are available. | The Blue Guide describes cooperation with competent authorities as part of manufacturer and supply-chain responsibilities and explains how conformity evidence supports authority responses. | When an authority request arrives, answer under the binding MSR power and attach Blue Guide-backed product-law evidence only where it explains the conformity file. |
|---|
| Enforcement | MSR Articles 25 to 28 cover controls on products entering the Union market, suspension of release for free circulation, release if the suspension is not maintained or approval is given, refusal to release for dangerous or non-conforming products, and ICSMS entry of relevant information. | The Blue Guide includes market-surveillance and border-control explanation, but it does not supersede the MSR procedure for suspension, release, refusal, or notices in customs systems. | For border holds, use MSR for the procedural rule and the Blue Guide only to explain the product-law document, marking, or role problem that triggered the hold. |
|---|
| Overlap and reuse | MSR uses compliance evidence in market-surveillance checks, but it is not the guide for choosing harmonised standards or defining the presumption of conformity. | The Blue Guide explains that harmonised standards are voluntary and can provide a presumption of conformity only for the essential or other requirements they aim to cover when referenced in the OJEU. | Do not use MSR as a standards-selection shortcut. Keep the Blue Guide standards analysis in the technical file, then use MSR to prepare for authority review of that file. |
|---|
| Practical decision rule | MSR is directly applicable regulation text for market surveillance and compliance of products. Use it as the binding source for authority powers, Article 4 operator tasks, cooperation duties, border controls, and corrective action. | The Blue Guide is a Commission notice. It supports consistent interpretation, but it expressly says it is guidance and that only the Union harmonisation act has legal force. | Do not cite the Blue Guide as if it creates a standalone duty. Cite MSR or the sector act for the duty, then use the Blue Guide to explain the product-law concept if needed. |
|---|