Innovation, Science and Economic Development Canada (ISED) has completed the transition to ETSI EN 301 893 V2.2.1 (2024-11) for Dynamic Frequency Selection (DFS) testing of 5 GHz Wireless Access Systems and Radio Local Area Network (WAS/RLAN) devices.

The change was introduced through ISED Notice 2025-DRS0006 and became mandatory for new certifications following the end of the six-month transition period on 20 July 2026.

What has changed?

During the transition period, manufacturers could demonstrate compliance with ISED’s DFS requirements using either:

• ETSI EN 301 893 V1.8.1 (2015-03), or
• ETSI EN 301 893 V2.2.1 (2024-11).

Since 20 July 2026, new certification applications using the ETSI DFS procedure must be based on V2.2.1. The previous V1.8.1 version is no longer accepted for new certifications using this route.

The updated standard provides additional information and guidance for client devices with radar detection, making the change particularly relevant when assessing 5 GHz wireless products and their DFS functionality.

Particular relevance of the 5600–5650 MHz band

The update is especially important for devices operating in the 5600–5650 MHz range.

For DFS testing in this sub-band, ETSI EN 301 893 is the only accepted test method under ISED requirements.

As a result, manufacturers whose products operate in or across 5600–5650 MHz should pay particular attention to the updated ETSI requirements when preparing Canadian certification projects.

What manufacturers and certification applicants should consider

Companies planning new Canadian certifications for 5 GHz WAS/RLAN equipment should:

• assess products operating in the 5600–5650 MHz range with particular care;
• ensure that new DFS test evidence is generated according to ETSI EN 301 893 V2.2.1 (2024-11);
• review ongoing projects that were originally planned around V1.8.1;
• ensure that the certification documentation and supporting technical information remain consistent with the updated compliance basis.

Existing certifications are not automatically invalidated simply because ISED has moved to the newer test standard. The key impact is on new certification applications and projects that have not yet established an accepted certification basis.

What does this mean for certification services

For manufacturers, laboratories and certification bodies, the transition marks an important update to the Canadian 5 GHz compliance landscape.

We recommend reviewing affected 5 GHz products and ongoing Canadian certification projects to determine whether the DFS evaluation needs to be aligned with ETSI EN 301 893 V2.2.1.

If you are planning a new Canadian certification for a 5 GHz wireless product, our team can support you in determining the applicable DFS test requirements and certification pathway.