Country music different genres and subgenres, depending on where they originated, and in what regions they are popular. One specific song style, the ranchera, found its origins in the Mexican countryside and was first popularized with mariachi, and has since also become popular with banda, norteño, Duranguense and other regional Mexican styles. The corrido, a different song style with a similar history, is also performed in many different regional styles. Other song styles performed in regional Mexican music include ballads, cumbias, boleros, among others. American country music is also popular in Mexico, but most prominently in the northern regions of the country,
WARC bands codified in official recommendations, such as the IARU Region 1 HF Manager's Handbook, which states: Contest activity shall not take place on the 10, 18 and 24 MHz bands. Non-contesting radio amateurs are recommended to use the contest-free HF bands (30, 17 and 12m) during the largest international contests. (DV05_C4_Rev_07) Canada is part of region 2 and as such is subject to the IARU band plan. Radio Amateurs of Canada offers the bandplan below as a recommendation for use by radio amateurs in that country but it does not have the force of law and should only be considered a