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Friday, June 25th, 2010CICIND – International Committee for Industrial Chimneys and Stacks, producing technical publications and design codes on industrial chimneys and stacks. CICIND Industrial Chimneys and Stacks – technical data, codes, publications. and the Wikipedia: A chimney sweep is a person who cleans chimneys for a living. The occupation of chimney sweep is considered to be one of the oldest in the world, as chimneys have been around since ancient times, though it is only in the last two hundred years that the chimney The National Chimney Sweep Guild (NCSG) is a non-profit membership-based trade association for the chimney service industry and represents more than 1, 100 chimney service companies nationwide.