---
title: "RED radio modules FAQ: host product assessment"
canonical_url: "https://www.sorena.io/artifacts/eu/radio-equipment-directive/faq/radio-modules"
source_url: "https://www.sorena.io/artifacts/eu/radio-equipment-directive/faq/radio-modules"
author: "Sorena AI"
description: "FAQ on how Directive 2014/53/EU treats RF modules and host products, including module evidence, final-product responsibility, Article 3 assessment, technical documentation, instructions, antennas, software, and DoC records."
published_at: "2026-05-09"
updated_at: "2026-05-09"
keywords:
  - "EU Radio Equipment Directive"
  - "Directive 2014/53/EU"
  - "RED radio modules"
  - "RF module compliance"
  - "host product assessment"
  - "RED technical documentation"
  - "RED EU declaration of conformity"
  - "RED"
  - "Radio modules"
  - "RF modules"
  - "Technical documentation"
---
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---

# RED radio modules FAQ: host product assessment

FAQ on how Directive 2014/53/EU treats RF modules and host products, including module evidence, final-product responsibility, Article 3 assessment, technical documentation, instructions, antennas, software, and DoC records.

*FAQ* *EU*

## RED FAQ Radio Modules

RF modules and components with embedded RF modules can themselves be radio equipment under Directive 2014/53/EU when placed on the EU market before integration.

For the host product, module certificates and test reports are supporting evidence. They do not replace the final-product RED assessment, technical documentation, declaration, instructions, and responsibility record.

Assess radio-module products in two layers. First, decide whether the RF module or RF component placed on the EU market is radio equipment in its own right. Second, assess the final host product placed on the EU market. The final-product manufacturer may reuse module assessments, but remains responsible for the conformity of the whole radio equipment and must show that the module is used within the assessed antenna, software, enclosure, power, installation, spectrum, EMC, safety, and intended-use conditions.

## Are RF modules covered by the Radio Equipment Directive?

Yes, the Commission RED Guide treats RF modules and components with an embedded RF module as radio equipment where they meet the RED definition and are placed on the EU market before integration into another product. Integrated circuits can also be covered where they have the capacity to receive or transmit radio signals once integrated as a standalone radio function into another product.

That module-level assessment is not the end of the analysis. The guide says this component section is without prejudice to new obligations that may arise when those radio components are integrated into another product.

- Identify whether the item being bought, sold, or imported is an RF module, a component with an embedded RF module, an integrated circuit with radio transmit or receive capability, or a finished host product.
- For a module placed on the EU market before integration, keep the module's RED conformity evidence and integration instructions.
- For the host product, run a final-product assessment instead of relying only on the module label, supplier declaration, or certificate.

Sources for this answer:

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Primary RED source for the definition of radio equipment and the Article 3 essential requirements that apply to radio equipment.
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance identifying RF modules and embedded RF modules as radio equipment when placed on the EU market before integration, and warning that integration can create further obligations.

## How should the host product be assessed?

Start with the final product and intended market placement. If the host product is radio equipment because it intentionally emits or receives radio waves for radio communication or radiodetermination, map the final product to the applicable Article 3 requirements, not just to the module test report.

Article 17 requires conformity assessment to take into account all intended operating conditions. For Article 3(1)(a), the assessment also takes reasonably foreseeable conditions of use into account. The RED Guide adds that where radio equipment can take different configurations, the conformity assessment should confirm compliance in all possible configurations.

- Confirm the exact host model, hardware revision, firmware version, radio modes, intended use, accessories, and EU market placement role.
- Check whether the host changes the module's assessed conditions: antenna type or placement, enclosure, shielding, cables, power supply, grounding, ports, firmware settings, duty cycle, operating modes, installation position, user configuration, or intended environment.
- Map Article 3(1)(a) safety and health, Article 3(1)(b) EMC, Article 3(2) efficient spectrum use, and any applicable Article 3(3) requirement to final-product evidence.
- Use module reports only for the requirements, configurations, and conditions they actually cover.

Sources for this answer:

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Article 3 sets essential requirements and Article 17 sets conformity assessment requirements for radio equipment.
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance explaining final-product responsibility, use of prior component assessments, and assessment across intended operating conditions and configurations.

## What module and host evidence belongs in the technical documentation?

The technical documentation should let a reviewer connect the module evidence to the exact final radio equipment. Annex V requires a general product description, relevant photos or illustrations, marking and internal layout, software or firmware versions affecting compliance, user information, installation instructions, drawings, standards or other technical specifications, the EU declaration, and test or examination results where applicable.

When the host manufacturer reuses assessments performed for components or parts, the RED Guide says those assessments should be included in the technical documentation. The record should also explain why the host configuration stays inside the module supplier's conditions, or what added analysis or testing covers deviations.

- Keep module DoC or supplier declaration information, module test reports, module installation instructions, approved antenna conditions, radio parameters, firmware assumptions, and limitations.
- Keep host evidence for antenna location, enclosure, shielding, cable routing, power supply, grounding, ports, accessories, software settings, labels, packaging, instructions, and intended operating configurations.
- List harmonised standards applied in full or in part; where harmonised standards are not applied or are only partly applied, describe the solutions used to meet Article 3.
- If Annex III EU-type examination is used, include the EU-type examination certificate and annexes from the notified body.

Sources for this answer:

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Article 21 and Annex V define RED technical-documentation contents, including product description, software or firmware affecting compliance, user information, standards, other specifications, DoC, certificates, and test results.
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance stating that prior component or part assessments used for the radio equipment assessment should be included in the technical documentation.

## What should instructions and the EU declaration say for a module-based product?

Instructions matter because they define how the radio equipment is intended to be used. Article 10(8) requires instructions and safety information in a language easily understood by consumers and other end-users as determined by the Member State concerned. For intentional transmitters, the instructions also need frequency bands and maximum transmitted radio-frequency power information.

For accessories, components, and software that allow the radio equipment to operate as intended, the RED Guide focuses on items that influence conformity and are intended to be installed or changed by the user without the manufacturer's control. If the equipment is delivered without an antenna, the guide says the technical features of the antenna that may be used with the radio equipment should be provided to the user and mentioned in the DoC where needed.

- State allowed antennas, antenna characteristics, installation limits, separation or mounting assumptions, power supply limits, firmware or software constraints, and supported radio modes where those facts affect compliance.
- Do not leave module integration conditions only in supplier files; carry the relevant conditions into host instructions, technical documentation, and release checks.
- Keep the DoC designation aligned with the product, module configuration, accessories, components, and software that allow the radio equipment to operate as intended.
- If restrictions on putting into service or authorisation requirements apply, keep packaging and instruction evidence aligned with Article 10(10) analysis.

Sources for this answer:

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Article 10 grounds manufacturer duties for instructions, safety information, frequency band and power information, restriction information, EU declaration, and CE marking.
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance explaining instruction and DoC treatment for accessories, components, software, and antennas that affect conformity or are user-installed or user-changed.

## When should a radio-module assessment be reopened?

Reopen the assessment when the product facts no longer match the evidence. A module test report or certificate is strongest when the host uses the same radio configuration, antenna conditions, software assumptions, installation limits, and intended environment that were assessed.

A change does not automatically mean the product fails, but it does need a documented review. The record should decide whether existing module and host evidence remains sufficient, whether additional testing or analysis is needed, whether a notified body route is triggered, and whether the DoC, instructions, labels, or technical documentation must be updated.

- Review after changes to antenna, enclosure, shielding, power supply, ports, cables, grounding, firmware, radio settings, accessories, installation instructions, intended use, market restrictions, or applicable standards.
- Review when a supplier replaces the module, changes the module firmware, changes allowed installation conditions, or updates the module declaration or test report.
- Review before private-labelling, importing, or modifying a module-based product in a way that may shift manufacturer responsibility or affect conformity.

Sources for this answer:

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Primary source for manufacturer responsibility to ensure radio equipment is designed and manufactured in accordance with Article 3 and for technical documentation and declaration duties.
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance used for changes that affect integration assumptions, instructions, intended use, and final-product responsibility.

## Primary sources

- [Directive 2014/53/EU on radio equipment](https://eur-lex.europa.eu/eli/dir/2014/53/oj?ref=sorena.io) - Binding RED source for radio-equipment definition, Article 3 essential requirements, Article 10 manufacturer duties, Article 17 conformity assessment, Article 21 technical documentation, Annex V technical-documentation contents, and Annex VI EU declaration contents.
  - Quote: "radio equipment"
- [European Commission RED Guide](https://ec.europa.eu/docsroom/documents/23321?ref=sorena.io) - Commission guidance used for RF module scope, module integration, final-product responsibility, use of component assessments, intended operating conditions, technical documentation, instructions, antennas, software, and DoC interpretation.
  - Quote: "RF Modules (Radio Frequency Modules)"

## Topic Guides

- [Are radio kits and evaluation boards covered by the RED? | RED FAQ](/artifacts/eu/radio-equipment-directive/faq/kits.md): RED FAQ for radio kits, construction kits, amateur-radio kits, and custom-built professional R&D evaluation boards under Directive 2014/53/EU.
- [EU Radio Equipment Directive Timeline: practical guide](/artifacts/eu/radio-equipment-directive/timeline.md): EU Radio Equipment Directive guide to Timeline with scope decisions, owner actions, evidence records, source-linked citations, and practical next steps.
- [EU RED Applicability Test for Radio Equipment](/artifacts/eu/radio-equipment-directive/applicability-test.md): Decide whether Directive 2014/53/EU applies to a connected product, which RED requirements are triggered, and what evidence belongs in the technical file.
- [EU RED Common Charger FAQ: Which devices need USB-C?](/artifacts/eu/radio-equipment-directive/faq/common-charger.md): FAQ on EU RED common charger scope, 28 December 2024 and 28 April 2026 dates, USB-C, USB Power Delivery, charger unbundling, labels, pictograms, and evidence.
- [EU RED Common Charger Obligations: USB-C scope, dates, labels](/artifacts/eu/radio-equipment-directive/common-charger-obligations.md): source-linked RED common charger guide covering in-scope device categories, 28 December 2024 and 28 April 2026 dates, USB-C, USB PD, charger unbundling, labels, pictograms, and evidence.
- [EU RED compliance evidence guide](/artifacts/eu/radio-equipment-directive/compliance.md): Build a Radio Equipment Directive compliance file with Article 3 requirement mapping, harmonised-standard checks, conformity assessment evidence, EU declarations, CE marking, and RED source links.
- [EU RED Cybersecurity Product Categories: 2022/30 scope](/artifacts/eu/radio-equipment-directive/cybersecurity-delegated-act-product-categories.md): source-linked guide to RED Delegated Regulation (EU) 2022/30 product categories for Article 3(3)(d), (e), and (f), carve-outs, 1 August 2025 application, and release evidence.
- [EU RED FAQ: Scope, CE and USB-C](/artifacts/eu/radio-equipment-directive/faq.md): Answers to common EU RED questions on radio equipment scope, Article 3 requirements, cybersecurity, USB-C common charger rules, CE marking, and technical-file evidence.
- [EU RED Radio Equipment Scope: products and exclusions](/artifacts/eu/radio-equipment-directive/radio-equipment-scope.md): Decide whether a product is radio equipment under Directive 2014/53/EU, with RED scope tests, exclusions, examples, and evidence records.
- [EU RED Requirements Map: CE and Article 3](/artifacts/eu/radio-equipment-directive/requirements.md): Map Radio Equipment Directive requirements for radio products: Article 3 safety, EMC, spectrum, selected Article 3(3) duties, common charger rules, conformity assessment, CE marking, EU declaration, and technical documentation.
- [EU RED Scope and Classification](/artifacts/eu/radio-equipment-directive/scope-and-classification.md): Classify products under the EU Radio Equipment Directive with source-linked tests for radio equipment scope, exclusions, Article 3 requirement buckets, cybersecurity, common charging, and evidence records.
- [EU RED Scope Classification Workflow](/artifacts/eu/radio-equipment-directive/red-scope-classification-workflow.md): Classify products under the EU Radio Equipment Directive with a source-linked workflow for RED scope, exclusions, Article 3 requirements, standards, CE evidence, cybersecurity, and common-charger triggers.
- [RED Article 10 labelling, instructions, and restrictions](/artifacts/eu/radio-equipment-directive/article-10-labelling-and-restrictions.md): source-linked RED Article 10 guide for radio equipment labels, manufacturer contact details, instructions, DoC statements, frequency information, and use restrictions.
- [RED Article 3 requirement selection workflow](/artifacts/eu/radio-equipment-directive/article-3-requirement-selection-workflow.md): Select the right RED Article 3 branches for radio equipment: safety, EMC, spectrum, delegated Article 3(3) duties, cybersecurity, common charging, evidence, and conformity assessment.
- [RED Article 3 Requirements: Safety, EMC, Spectrum and Cyber](/artifacts/eu/radio-equipment-directive/article-3-1-3-2-and-3-3-requirements.md): Map Radio Equipment Directive Article 3(1), 3(2), and 3(3) requirements to safety, EMC, spectrum, interoperability, emergency, software, and cyber evidence.
- [RED Compliance Checklist for Radio Equipment](/artifacts/eu/radio-equipment-directive/checklist.md): source-linked RED checklist for radio equipment scope, Article 3 requirements, technical documentation, DoC, CE marking, cybersecurity, common charger, and notified-body decisions.
- [RED compliance deadlines calendar: 2016, 2024, 2025 and 2026 dates](/artifacts/eu/radio-equipment-directive/deadlines-and-compliance-calendar.md): Calendar the EU Radio Equipment Directive deadlines that affect launches: RED applicability, transition end, common charger dates, cybersecurity requirements, OJEU standards, CE marking, declarations and technical files.
- [RED conformity assessment and CE marking](/artifacts/eu/radio-equipment-directive/conformity-assessment-and-ce.md): EU Radio Equipment Directive guide to Article 17 conformity modules, notified-body triggers, technical documentation, EU declarations, and CE marking.
- [RED Conformity Assessment Template](/artifacts/eu/radio-equipment-directive/red-conformity-assessment-template.md): Template fields for documenting RED Article 3 requirements, Article 17 route selection, harmonised standards, notified-body evidence, technical documentation, EU declaration, CE marking, cybersecurity, and common-charger checks.
- [RED Cyber Compliance Workflow for Article 3(3)(d/e/f)](/artifacts/eu/radio-equipment-directive/cyber-compliance-workflow.md): A source-linked RED cybersecurity workflow for internet-connected radio equipment, privacy and data safeguards, payment-fraud features, evidence packs, and CE release gates.
- [RED Cybersecurity Delegated Act Guide | Article 3(3)(d/e/f)](/artifacts/eu/radio-equipment-directive/red-cybersecurity-delegated-act-guide.md): Practical guide to Delegated Regulation (EU) 2022/30 under the Radio Equipment Directive, covering Article 3(3)(d), (e), and (f) cybersecurity scope, 1 August 2025 application, evidence, standards, and notified-body checkpoints.
- [RED Cybersecurity Requirements for Radio Equipment](/artifacts/eu/radio-equipment-directive/cybersecurity-requirements.md): EU RED cybersecurity requirements under Article 3(3)(d), (e), and (f): scope, affected radio equipment, application date, standards, notified bodies, and evidence.
- [RED DoC and CE marking file: what to include](/artifacts/eu/radio-equipment-directive/faq/doc-and-ce.md): FAQ answer for Radio Equipment Directive declarations of conformity, CE marking evidence, technical documentation, notified-body records, and related labels.
- [RED EMC and LVD Safety Interplay for Radio Equipment](/artifacts/eu/radio-equipment-directive/emc-and-lvd-safety-interplay.md): Explain how EU RED Article 3 applies LVD safety objectives and EMC requirements to radio equipment, with evidence, test-plan, and technical-file guidance.
- [RED Harmonised Standards and Test Plans: OJEU evidence guide](/artifacts/eu/radio-equipment-directive/harmonized-standards-and-test-plans.md): Build a Radio Equipment Directive standards matrix and test plan around OJEU-cited harmonised standards, Article 3 requirements, Article 17 route triggers, and Annex V technical-file evidence.
- [RED importer obligations FAQ | Directive 2014/53/EU](/artifacts/eu/radio-equipment-directive/faq/importers.md): What importers must check before placing radio equipment on the EU market: conformity assessment, spectrum use, technical documentation, EU declaration, CE marking, traceability, instructions, restrictions, storage, corrective action, and authority cooperation.
- [RED notified body route selection under Article 17](/artifacts/eu/radio-equipment-directive/notified-body-route-selection.md): Decide when RED radio equipment can use internal production control and when Article 17 requires Annex III EU-type examination or Annex IV full quality assurance.
- [RED Notified Body Trigger Workflow: Article 17 evidence guide](/artifacts/eu/radio-equipment-directive/notified-body-trigger-workflow.md): Decide when the EU Radio Equipment Directive needs a notified body by mapping Article 3 requirements, OJEU-cited harmonised standards, Annex III EU-type examination, and Annex IV full quality assurance evidence.
- [RED penalties, fines, and enforcement actions](/artifacts/eu/radio-equipment-directive/penalties-and-fines.md): EU Radio Equipment Directive penalties guide covering Article 46, Member State penalty rules, recalls, withdrawals, formal non-compliance, and enforcement evidence.
- [RED SAR and RF Exposure Evidence FAQ](/artifacts/eu/radio-equipment-directive/faq/sar-and-wireless-exposure.md): What SAR and RF exposure evidence to keep under the EU Radio Equipment Directive, including Article 3(1)(a), foreseeable use, frequency, power, antenna, and standards evidence.
- [RED software update impact for radio equipment](/artifacts/eu/radio-equipment-directive/software-update-impact.md): Assess when firmware, app, and software updates can affect EU Radio Equipment Directive conformity, technical documentation, DoC, standards, and notified-body evidence.
- [RED standards not cited in the OJEU: can you use them?](/artifacts/eu/radio-equipment-directive/faq/standards-not-cited-in-ojeu.md): FAQ answer for Radio Equipment Directive products when a standard is useful but not OJEU-cited, including presumption of conformity, Article 17 route selection, and technical-file evidence.
- [RED vs Cyber Resilience Act: radio equipment cyber scope](/artifacts/eu/radio-equipment-directive/red-vs-cyber-resilience-act.md): Compare RED cybersecurity duties with Cyber Resilience Act planning for connected radio equipment, using grounded RED scope, evidence, dates, and caveats.
- [RED vs EMC Directive: when radio equipment uses RED instead of EMCD](/artifacts/eu/radio-equipment-directive/red-vs-emc.md): Compare the EU Radio Equipment Directive and EMC Directive for radio products, EMC evidence, CE marking, declarations, technical files, and scope boundaries.
- [RED vs ETSI EN 303 645: IoT cyber evidence comparison](/artifacts/eu/radio-equipment-directive/red-vs-etsi-en-303-645.md): Compare EU RED cybersecurity duties with ETSI EN 303 645 evidence reuse for connected radio products, OJEU standards, CE files, and 1 August 2025 planning.
- [RED vs LVD: when radio equipment uses RED for electrical safety](/artifacts/eu/radio-equipment-directive/red-vs-lvd.md): Compare the EU Radio Equipment Directive and Low Voltage Directive for radio-product safety, voltage limits, CE marking, technical files, and declarations.
- [RED vs Market Surveillance Regulation: radio equipment compliance roles](/artifacts/eu/radio-equipment-directive/red-vs-msr.md): Compare RED product conformity duties with EU Market Surveillance Regulation controls for radio equipment, online sales, responsible operators, customs holds, and evidence.
- [RED vs UK PSTI for connected radio products](/artifacts/eu/radio-equipment-directive/red-vs-uk-psti.md): Compare EU RED duties with UK PSTI planning for connected radio products: scope, actors, evidence, cybersecurity overlap, CE marking, and separate UK product-security workstreams.
- [When do RED cybersecurity requirements apply to connected radio equipment? | RED FAQ](/artifacts/eu/radio-equipment-directive/faq/cybersecurity-applicability.md): RED FAQ explaining when Article 3(3)(d), (e), and (f) cybersecurity requirements apply to internet-connected, childcare, toy, wearable, and payment-capable radio equipment.
- [Which receivers and transmitters are covered by RED? | Directive 2014/53/EU FAQ](/artifacts/eu/radio-equipment-directive/faq/receivers-and-transmitters.md): RED scope FAQ for products that intentionally emit or receive radio waves for radio communication or radiodetermination, including receiver-only products, transmitters, accessory-dependent products, and common exclusions.
- [Wi-Fi and Bluetooth Products Under the EU RED](/artifacts/eu/radio-equipment-directive/faq/wi-fi-and-bluetooth-products.md): FAQ for assessing Wi-Fi, Bluetooth, BLE and other short-range wireless products under the EU Radio Equipment Directive, including Article 3, CE, technical file, cybersecurity and notified-body triggers.

*Recommended next step*

*Placement: after evidence section*

## Review the host product before relying on module evidence

Map the RF module and final host product separately, then check that module evidence, antenna and software assumptions, Article 3 coverage, instructions, DoC wording, and technical documentation support the exact configuration placed on the EU market.

- [Open RED Research Copilot](/solutions/research-copilot.md): Answer RED module, host-product, and evidence questions with cited outputs.
- [Talk through module integration](/contact.md): Review the RF module scope, host configuration assumptions, and final-product RED file.


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