For anyone interested, I found an article:
http://www.ecmag.com/?fa=article&articleID=9134
This is from July 2008. It says: "Starting with the easiest, there are no statewide low-voltage licensing requirements in Iowa, Kansas, Mississippi, New Hampshire, North Dakota, Ohio and Wisconsin. While Colorado, Indiana, Missouri and Pennsylvania have no statewide requirements, localities in these states do have them."
Re: Low voltage license, certification
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