In a CRTC decision Thursday, the commission denied an application from Corus-owned station CJOY, in Guelph, to switch from the AM to the FM band. CJOY, an oldies music station, operates on 1640 AM and requested to switch to a 9,500-watt station on 95.7 FM. The CRTC cited common ownership policy as the reason for its decision. Common ownership policy stipulates that in markets where there are fewer than eight commercial stations operating in a given language—and Guelph is such a market—a person or company cannot own more than two stations in that language on one frequency band. In addition to CJOY, Corus operates three FM stations in the Guelph market. A strong signal from Corus’ CING-FM in Hamilton also reaches into the Guelph market.