You may not, but it definitely does make a difference in their playlist. It's one reason they say every BC or Canadian province station is an AOR station: (All Over the Road)
And another reason why streaming U.S. stations is so popular in BC:
From the Canadian Content Requirements page of CRTC:
"Radio stations program a wide variety of popular music radio formats to meet the needs of their listeners. While most popular music formats tend to feature contemporary vocal music, other music formats – such as nostalgia, oldies, adult standards and middle of the road (MOR) – program "older" popular music styles that may include vocal and instrumental music."
As well, commercial radio stations have to ensure that Special Interest Music selections, including Canadian content, are scheduled in a reasonable manner throughout the broadcast day.
When these stations renew their licenses, they’re expected to propose an increase in the Canadian Special Interest Music they play – except in the case of concert music or jazz and blues. Those operating a concert / classical music format must also provide specific commitments to the broadcasting of works by Canadian composers.
"The availability of older Canadian popular music within this group may be limited compared to contemporary music genres. With this in mind, the CRTC provides some flexibility in terms of Canadian content requirements (through either regulation or condition of licence)."
"Oldies music: in any broadcast week where at least 90% of the popular music aired consists of selections released before January 1 1981, at least 30% must be Canadian, both on a weekly basis and between 6 a.m. and 6 p.m. Monday through Friday"