ISED Launches Public Consultation on RSS-252, Issue 3

Release Date: September 05, 2025                                                                                                                                                                                                                                                 Document No.: Newsletter_200509001

ISED has released RSS-252, Issue 3 in draft form for public consultation. This standard defines the certification requirements for licence-exempt OBUs operating in the 5895–5925 MHz band using cellular vehicle-to-everything (C-V2X) technology for ITS applications.

Key Changes in Issue 3

1.    Section 3.2 – Channel Allocation

The following allocations are introduced:

10 MHz channels: 5895–5905 MHz, 5905–5915 MHz, 5915–5925 MHz

20 MHz channels: 5895–5915 MHz, 5905–5925 MHz

30 MHz channel: 5895–5925 MHz

2.    Section 3.3 – Transmitter Power Clarification

Confirms that power limits apply on a per-channel basis.

3.    Section 3.4 – Unwanted Emission Limits

Modifies requirements for out-of-band and spurious emissions.

4.    Editorial Updates

Minor edits and clarifications for clarity.

Consultation Timeline

The draft standard is open for comments until November 10, 2025.

Full details are available via the ISED website.

Should you have any question, please feel free to contact us:

Email: service@mrt-cert.com