Rehabilitating Historic Properties
For The Federal Investment Tax Credits


The Oklahoma State Historic Preservation Office (SHPO) works with the U.S. Department of the Interior, National Park Service (NPS), in the review of proposed rehabilitation projects for the federal historic preservation tax incentives.  This manual is designed to provide applicants basic information for obtaining the required National Park Service certification of a rehabilitation project. 

The SHPO reviews and comments on projects and provides technical assistance to the applicant.  However, applicants are reminded that NPS written certification is required in order to claim the 20% tax credit for "certified rehabilitation" of a "certified historic structure."

Review the information contained in this manual carefully.  Contact the SHPO with questions about project certification.  For information on financial aspects of your particular project, contact your tax advisor or the Internal Revenue Service. 

Remember that rehabilitation work begun before you receive written
NPS certification can jeopardize your eligibility for receiving the tax benefit. 
The entire review process has carefully monitored time frames.  By following
 the recommended review process, you can save yourself time and money.

The National Park Service publishes many documents that may be of interest.  For example:

        "Preservation Tax Incentives for Historic Buildings"
        "Catalog of Historic Preservation Publications"
        "Preservation Briefs 1-41"

These publications are available from the U.S. Department of the Interior, National Park Service, Cultural Resources, Washington, D.C.  Individual copies of "Preservation Briefs" are available from the SHPO, and a list of them is provided at the end of this manual.

Many publications are available at the National Park Service, Cultural Resources web site at


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