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About: Regional Agreement for the Medium Frequency Broadcasting Service in Region 2     Goto   Sponge   NotDistinct   Permalink

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The Regional Agreement for the Medium Frequency Broadcasting Service in Region 2, commonly known as the Rio Agreement, is an international treaty defining standards for AM band (mediumwave) radio stations. It was signed in Rio de Janeiro, Brazil on 19 December 1981 and took effect on 1 July 1983 at 08:00 UTC. The agreement was the result of a conference organized by the International Telecommunication Union (ITU), and set standards for the ITU's Region 2, covering the western hemisphere countries located in North America, South America, and the Caribbean.