The EU CE-RED certification (Radio Equipment Directive) is the mandatory compliance requirement for devices with radio transmission or reception capabilities within the EU, designed to ensure that such equipment circulates legally in the EU market while safeguarding rational spectrum utilization, electromagnetic compatibility (EMC), health and safety, and interoperability between devices. It replaced the earlier R&TTE Directive (1999/5/EC) in June 2016 and became formally mandatory as of June 13, 2017, serving as the "passport" for radio equipment entering the EU market.

1. Scope of CE-RED

All electronic devices that intentionally transmit or receive radio waves must comply with the RED Directive. Typical products include:



Note: Purely wired devices (e.g., a desk lamp without wireless functionality) or devices that transmit signals only via wired connections (e.g., USB data cables) do not require RED certification.

2. Core Compliance Requirements of CE-RED

The technical requirements of the RED Directive center on three pillars—"spectrum compliance, safety, and interoperability"—specifically including:


  1. Radio Spectrum Compliance

    • Bluetooth/WiFi devices: EN 300 328 (2.4 GHz ISM band);

    • Short-range remote control devices: EN 300 220;

    • 5G devices: EN 301 908 series.

    • The device's operating frequency, transmit power, occupied bandwidth, and other parameters must comply with EU and member state spectrum plans (e.g., EU CEPT/ERC decisions) to avoid interference with other lawful radio equipment (such as aviation communications, broadcast television).

    • Must conform to harmonized standards published by the European Telecommunications Standards Institute (ETSI), for example:

  2. Electromagnetic Compatibility (EMC)

    • The device's own electromagnetic emissions must not exceed specified limits, and it must be immune to external electromagnetic interference (to avoid malfunction due to interference), in accordance with the EN 301 489 series of standards (e.g., EN 301 489-1/-17 for different frequency bands).

  3. Health and Safety

    • RF exposure limits: The device's electromagnetic radiation must meet human safety requirements, following EN 62479 (general standard) or EN 50360 (mobile phones), etc., to ensure no excessive radiation hazard to the human body.

    • Electrical safety: If the device involves mains power supply, it must comply with the safety requirements of the LVD (Low Voltage Directive, 2014/35/EU) (e.g., electric shock protection, fire protection).

  4. Interoperability and Labeling

    • The device must possess interoperability with other lawful radio equipment (e.g., Bluetooth devices of different brands can pair with each other).

    • Mandatory affixing of the CE mark, and marking the product and packaging with the model number, manufacturer information, and the address of the EU Representative (non-EU enterprises must appoint one).

    • The user manual must include a multi-language (EU official languages) Declaration of Conformity, usage instructions, and spectrum restriction notices.

3. CE-RED Certification Process

  1. Determine product classification and applicable standards
    Based on the product function (e.g., Bluetooth, WiFi, radio frequency band), consult the ETSI official website to confirm the corresponding harmonized standards (e.g., EN 300 328) and clarify whether the LVD Directive must also be satisfied (if the device voltage falls within the range of 50–1000 V AC or 75–1500 V DC).
  2. Select a testing laboratory
    It is necessary to engage an EU Notified Body or an accredited third-party laboratory for testing (some low-risk products may use self-declaration, but high-risk equipment such as wireless communication base stations and aviation radios require Notified Body involvement). Common Notified Bodies include SGS, Intertek, TÜV Rheinland, etc.
  3. Sample testing
    The laboratory conducts full testing of the product according to applicable standards, including:

    • RF performance (frequency, power, modulation scheme);

    • EMC – electromagnetic compatibility (emissions, immunity);

    • RF exposure (radiation safety);

    • Electrical safety (if LVD is applicable).

  4. Prepare the Technical Construction File (TCF)
    After passing testing, the technical file must be compiled and archived (for at least 10 years), including:

    • Product description, design drawings, circuit diagrams;

    • Test reports (must include laboratory accreditation information);

    • Declaration of Conformity (DoC);

    • User manual, label samples;

    • EU Representative information (for non-EU enterprises).

  5. Issue the Declaration of Conformity (DoC)
    The manufacturer (or EU Authorized Representative) signs the DoC, declaring that the product complies with RED and related directive requirements. The DoC must include product information, applicable directive number (e.g., 2014/53/EU), issuer details, etc.
  6. Affix the CE mark and place on the market
    Affix the CE mark on the product and packaging (minimum height 5 mm), ensuring that the technical file is available at all times for inspection by EU member state market surveillance authorities.

4. Key Differences from the Former R&TTE Directive

5. Common Misconceptions and Compliance Risks

  1. Misconception 1: "Only transmitting equipment requires RED; receiving equipment does not need certification."
    Incorrect. RED applies to all radio reception equipment (e.g., radios, GPS receivers), as they may affect spectrum usage or rely on specific frequency bands for operation.
  2. Misconception 2: "CE-RED only requires testing; no technical file preparation is needed."
    Incorrect. The technical file is the core of compliance. EU regulatory authorities may conduct spot checks at any time. If the file cannot be provided or is incomplete, the product may be removed from the market.
  3. Risk points:

    • Software updates causing compliance failure: If a device changes RF parameters (e.g., transmit power) via OTA update, re-testing and DoC update are required;

    • No EU Representative appointed: Non-EU enterprises must appoint an Authorized Representative within the EU territory, otherwise the product cannot circulate legally;

    • Outdated standard versions: ETSI standards are updated periodically (e.g., EN 300 328 V2.2.2 is the current version). Testing must be based on the latest version.

6. Consequences of Non-Compliance

Summary

CE-RED is the mandatory threshold for radio equipment to enter the EU market. Its core purpose is to safeguard market order and user safety by regulating spectrum use, electromagnetic compatibility, and safety performance. Enterprises must:


  1. Clearly determine whether the product falls within the RED scope to avoid missed certification;

  2. Select a compliant laboratory for testing based on the latest ETSI standards;

  3. Fully prepare the technical file and appoint an EU Representative (for non-EU enterprises);

  4. Monitor the impact of software updates on compliance, and update testing and the declaration in a timely manner.


Through systematic compliance, enterprises can ensure their products enter the EU 27 member states and the European Economic Area (EEA) market smoothly.