Canadian amateur radio operators must comply with the Radiocommunication Act and Radiocommunication Regulations. What other organization issues radio regulations that Canadian amateur radio operators must comply with?

Radiocommunication is governed globally by the International Telecommunication Union (ITU), a specialized agency of the United Nations. Because Canada is a member state, the ITU Radio Regulations function as a binding international treaty that informs Canadian federal law. While Canadian amateurs directly follow the Radiocommunication Act managed by Innovation, Science and Economic Development (ISED) Canada, those federal rules are built upon the foundational framework provided by the ITU. The other options do not issue binding laws. The Radio Amateurs of Canada (RAC) and the International Amateur Radio Union (IARU) are advocacy groups representing amateurs, not regulatory authorities. Additionally, radio spectrum management in Canada is exclusively federal, meaning provincial or territorial governments have no jurisdiction over it.