National & Federal Resources
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The Secretary of the Interior's Standards for the Treatment of Historic Properties
The nationally recognized framework for preserving, rehabilitating, restoring, and reconstructing historic buildings and sites in the United States.
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Library of Congress
HISTORIC AMERICAN BUILDINGS SURVEY (HABS)
Historic architectural drawings and photographs of significant American buildings.
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National Trust for Historic Preservation
A nonprofit advocating for historic preservation, offering grants, toolkits, and success stories.
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National Park Service
TECHNICAL PRESERVATION SERVICES
Creates historic preservation standards, guides building rehabilitation, manages the Federal Historic Preservation Tax Incentives program, and establishes the Secretary of the Interior's Standards for treating historic properties.