Secretary of the Interior’s Standards and Guidelines

The Secretary of the Interior’s Standards and Guidelines for the Treatment of Historic Properties, developed by the National Park Service, offer a best-practice approach to the four treatments covered (preservation, rehabilitation, restoration, and reconstruction).  In some cases (e.g., tax credit or state grant projects), adherence to the standards is mandated; even when not compulsory, they provide a useful framework for projects involving historic buildings.

The office of the Secretary of the Interior has also published Illustrated Guidelines on Sustainability for Rehabilitating Historic Buildings.  This link to the National Park Service’s website for Technical Preservation Services has a link to the Guideline PDF.  If you have difficulty finding it, you can get the PDF here.