On December 12, 2025, Innovation, Science and Economic Development Canada (ISED) officially released the radio standard specification RSS-252 Issue 3. This standard applies to intelligent transportation system (ITS) in-vehicle units operating in the frequency range of 5895–5925 MHz. The new version replaces the second version and introduces a number of key updates, including a new section outlining channel allocation, further clarification of transmitter power requirements, revisions to unwanted transmit limits, and other editorial changes and clarifications.

RSS-252 Issue 3 has been effective since its publication, and ISED has routinely provided a 6-month transition period. Click this link to view the original RSS-252 Issue 3.