Canadian allocations changes under NARBA

The North American Regional Broadcasting Agreement (NARBA) took effect on March 29, 1941, requiring nearly all radio stations in North America to change frequency. This article details the major Canadian allocations changes under NARBA. The principal reason for Canada in entering the NARBA negotiations was to gain more clear-channel allocations for Canadian stations, particularly for the CBC, which at that time was both Canada's public broadcaster and also its broadcasting regulator.

Source: Wikipedia — Canadian allocations changes under NARBA (CC BY-SA 4.0)