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Door and Hardware Institute
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The Door and Hardware Institute (DHI) is a professional organization that serves as the resource for information on doors, hardware, security and specialty products for the architectural openings industry.
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Construction Specifications Institute
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The Construction Specifications Institute (CSI) is a national professional association that provides technical information and products, continuing education, professional conferences, and product shows to enhance communication among all the nonresidential building design and construction industry's disciplines and meet the industry's need for a common system of organizing and presenting construction documents.
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Producers Council of Southern California
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The Producers' Council of Southern California was chartered in 1931 to serve the twelve A.I.A. Chapters in this geographical area and has performed this function continuously since that time.
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