- General Agencies:
National Register of Historic Places
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Advisory Council on Historic Preservation
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National Center for Preservation Technology and Training
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State Historic Preservation Offices and Programs
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Occupational Safety and Health Administration
- Land managing agencies:
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National Park Service
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USDA Forest Service
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Bureau of Land Management
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Department of Defense
- Agencies involved with construction:
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US Army Corps of Engineers
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US Bureau of Reclamation
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Tennessee Valley Authority
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US Department of Transportation
- Agencies that grant/lend funds:
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Environmental Protection Agency
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Department of Housing and Urban Development
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Economic Development Administration
- Agencies that issue permits and licenses:
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US Army Corps of Engineers
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Federal Energy Regulatory Commission
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US Coast Guard
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International Code Council
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Federal Deposit Insurance Corporation
- Property Managers:
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US Army
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US Navy
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US Air Force
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US Postal Service
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US General Services Administration