Innovation, Science and Economic Development Canada (ISED) has updated the accepted test method for Dynamic Frequency Selection (DFS) in 5 GHz Wireless Access Systems/Radio Local Area Network (WAS/RLAN) devices. Effective July 20, 2026, all new certifications under RSS-247 must demonstrate DFS compliance using ETSI EN 301 893 V2.2.1 (2024-11). The previous version, ETSI EN 301 893 V1.8.1 (2015-03), is no longer accepted for new certification applications.

This change primarily affects manufacturers, importers, test laboratories, and certification bodies seeking to certify Wi-Fi and other 5 GHz wireless products for the Canadian market. During the six-month transition period, both versions were accepted, but after July 20, 2026, only V2.2.1 is valid. Notably, in the 5600–5650 MHz weather radar sub-band, ETSI EN 301 893 is the sole accepted method for DFS testing, with no FCC alternative.

Manufacturers must ensure their test labs and certification bodies have transitioned to the new procedure and review supporting documentation, including user manuals, labeling, antenna information, and software/security controls, for consistency with RSS-247 requirements. Existing certifications remain valid unless significant modifications, recertifications, or new model submissions are made, which must comply with the updated method.

This update is distinct from the publication of RSS-247 Issue 4 and is a certification/test-method requirement, not an operator or spectrum-licensing obligation. The measure strengthens radar protection and harmonizes DFS evaluation standards for a wide range of 5 GHz wireless devices.

This regulatory change is classified as High Impact due to its mandatory nature and broad effect on product certification and market access for 5 GHz wireless devices in Canada.

Key reasons for high impact:

• Mandatory adoption of ETSI EN 301 893 V2.2.1 for DFS testing from July 20, 2026
• Previous test method (V1.8.1) no longer accepted for new certifications
• Strict requirement in the 5600–5650 MHz band (weather radar sub-band)
• Affects a wide range of devices including routers, access points, mesh nodes, IoT gateways, and automotive infotainment systems
• Requires manufacturers, importers, test labs, and certification bodies to update procedures and documentation

Who is affected?

Manufacturers, importers, test laboratories, certification bodies, and stakeholders involved in the certification and market placement of 5 GHz WAS/RLAN devices.

Conclusion:

The update imposes new compliance obligations and necessitates procedural and documentation changes for all new certifications, with significant operational and market implications.