The State Historic Preservation Office (SHPO) assists federal agencies and others carrying out federal undertakings to meet their responsibilities under Section 106 of the National Historic Preservation Act. This Review and Compliance Manual provides detailed information about the documentation needed for determinations of eligibility and for determinations of effect. The SHPO receives thousands of requests for project review each year, and the SHPO must complete each review within the timeframe set forth in federal regulations. The SHPO's review period begins upon its receipt of an agency's request. Following are a few tips that will insure that your request gets to the appropriate SHPO staff reviewer as quickly as possible and greatly reduces the SHPO's need to request clarification or additional information.

  1. Address your requests to:

  2. Include a cover letter with your project materials that:

  3. For review requests which include multiple properties or locations:

  4. Keep in mind that:

  5. Also remember to contact the Oklahoma Archeological Survey:
  6. The SHPO and the Oklahoma Archeological Survey (OAS) operate under a cooperative agreement (approved by the U.S. Department of the Interior, National Park Service) for purposes of the Section 106 review process. The OAS evaluates projects for impacts on archeological resources. Your requests for review under Section 106 should be submitted to:

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