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National & State Registers Eligibility

Is It Eligible?

Not every old building, structure, or resource is eligible for listing in the National or State registers. To be eligible, a property should be at least 50 years old, maintain a certain degree of architectural integrity, and have significance at the local, state, or national level in at least one of these four categories:


Properties associated with events that have made a significant contribution to the broad patterns of our history.


Properties associated with the lives of persons significant in our past.

Architecture / Design

Properties that embody the distinctive characteristics of a type, period, or method of construction, or that represent the work of a master, or that possess high artistic values, or that represent a significant and distinguishable entity whose components may lack individual distinction (e.g., a historic district).

Archaeological Information

Properties that have yielded or may be likely to yield information important in prehistory or history.

Determination of Eligibility Requests

Before filling out and submitting a National or State Register application, DHPA staff recommend submitting a Request for Determination Eligibility Form. The National and State register application processes can be lengthy and take time and research. The DHPA staff can determine if a property is potentially eligible for listing in the registers before a great deal of time or resources are invested in the process.

Determination of Eligibility requests are reviewed once a month (see list of dates below). The Determination of Eligibility Form and all accompanying information must be received by the deadline date in order to be reviewed that month. Incomplete submissions will result in a request for additional information that will be reviewed at the next available meeting based on the date of receipt.

Determination of Eligibility Request Deadlines
  • January 5, 2024
  • February 9, 2024
  • March 8, 2024
  • April 5, 2024
  • May 3, 2024
  • June 7, 2024
  • July 5, 2024
  • August 9, 2024
  • September 6, 2024
  • October 4, 2024
  • November 8, 2024
  • December 6, 2024

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