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The Advisory Council on Historic Preservation (ACHP) is an independent federal agency with the primary mission to encourage historic preservation in the government and across the nation. The National Historic Preservation Act (NHPA), which established the ACHP in 1966, directs federal agencies to ac... Read more
Reid Nelson
United Nations
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U.S. Department of State
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County of Los Angeles
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United States Army
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National Science Foundation
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UNDP
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OECD
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City of Philadelphia
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National Geospatial-Intelligence Agency
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OCHA
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State of Maryland
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