Circular No. 423 - To all licensees of broadcasting undertakings serving the Province of Alberta
Circular No. 424 - To all licensees of broadcasting undertakings serving Canada – Federal General Election
Circular No. 425 - To all television programming undertaking licensees – Changes to requirements concerning relocation of local studios and transmitting antennas
Circular No. 426 - To the licensees of broadcasting distribution undertakings – Guidelines respecting financial contributions by the licensees of broadcasting distribution undertaking to the creation and presentation of Canadian programming
Circular No. 427 - To the licensees of Class 1 cable distribution undertakings – Filing guidelines respecting proposed rate deregulation and rate increases, pending such deregulation, for rate-regulated Class 1 cable distribution undertakings