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ETSI EN 300 220

ETSI EN 300 220 is a multipart standards series for Short Range Devices (SRD) operating from 25 MHz to 1 000 MHz. Part 1 defines technical characteristics and measurement methods. The applicable harmonised part—most commonly Part 2 for non-specific radio equipment—can support assessment of spectrum access under Article 3(2) of the Radio Equipment Directive (RED) 2014/53/EU.

Scope and Applications

The series covers a broad range of low-power radio equipment using narrowband, wideband or frequency-agile techniques. Typical applications include:

  • remote controls, alarms and keyless-entry systems;

  • industrial sensors, actuators and telemetry equipment;

  • smart metering and Wireless M-Bus devices;

  • sub-GHz IoT equipment and proprietary radio systems.


Common European SRD allocations include frequencies around 433 MHz and within 863–870 MHz. Equipment intended for other regional bands, including 915 MHz, must be assessed against the spectrum rules of the target market.

Structure of the Series

  • Part 1: technical characteristics and methods of measurement used for conformity assessment;

  • Part 2: harmonised standard for access to radio spectrum for non-specific radio equipment;

  • Parts 3-1 and 3-2: harmonised requirements for specified alarm applications;

  • Part 4: harmonised requirements for metering devices in the designated 169.400–169.475 MHz band.


The correct part is selected from the equipment function, operating band and intended use.

Key Technical Topics

The applicable requirements depend on the equipment category, operating frequency and spectrum allocation. They may address:

  • effective radiated power, power spectral density and occupied bandwidth;

  • unwanted emissions in the spurious and out-of-band domains;

  • duty cycle, Listen Before Talk (LBT), frequency agility or other access mechanisms;

  • receiver sensitivity, blocking and selectivity;

  • receiver categories 1, 1.5, 2 and 3, where applicable.


Permitted power and channel-access conditions are band- and application-specific; the standard must therefore be applied together with the relevant European and national spectrum rules.

Version and Official Journal Status

ETSI EN 300 220-2 V3.3.1 (2025-03) is the currently listed harmonised version for non-specific radio equipment. The reference was added by Commission Implementing Decision (EU) 2025/2499.


The reference to EN 300 220-2 V3.1.1 is scheduled for withdrawal on 11 June 2027. Manufacturers relying on a harmonised standard should verify the current Official Journal reference and any applicable transition conditions.

Conformity under the RED

Use of the applicable harmonised part is voluntary. When its reference is listed in the Official Journal, applying it correctly can provide a presumption of conformity for the essential requirements covered by that reference—principally Article 3(2) for radio-spectrum access.


Radio testing is only one part of the RED assessment. EMC, safety or health requirements may require additional standards and evidence. The EU Declaration of Conformity identifies the standards and other technical specifications actually applied; test reports remain part of the technical documentation.

For SRD EMC assessment, the relevant product-specific part of the EN 301 489 series may also apply, commonly EN 301 489-3.

Need Help?

We support testing against the applicable EN 300 220 part, RED conformity assessment and CE marking for sub-GHz radio equipment—from test planning to technical documentation. Learn more about our CE marking and EU market-access services.

Further Reading & Official Resources

Official ETSI Standard

This is a curated selection of key sources. For complete and current requirements, consult the official ETSI publication and the applicable Official Journal references. All references were verified in September 2026.

ILAC-MRA DAkkS-01 ILAC-MRA DAkkS-01