ISED issued a technical consultation on the Standard Radio System Plan SRSP-520, issue 3, Technical Requirements for Fixed and/or Mobile Systems, Including Flexible Use Broadband Systems, in the Band 3450-3900 MHz (the SRSP) and the Radio Standards Specification RSS-192, issue 5, Flexible Use Broadband Equipment Operating in the Band 3450-3900 MHz (the RSS). https://ised-isde.canada.ca/site/spectrum-management-telecommunications/en/learn-more/key-documents/consultations/consultation-srsp-520-issue-3-and-rss-192-issue-5
Closing dates for comments is March 10, 2023.