A determination of significance is used by the Archeology Division to help decide which archeological sites are most worthy of recording, investigation, preservation, and other treatment. Considered in a determination of significance are the following:
  (1) listing in the National Register of Historic Places;
  (2) designation as a state antiquities landmark;
  (3) qualification, as determined by the commission, as an eligible property under the criteria for inclusion in the National Register of Historic Places or for designation as a state antiquities landmark;
  (4) marking by an official Texas historical marker of any type, including centennial markers;
  (5) determination by the state archeologist or the commission that the site or resource is capable of yielding information important to the understanding of history; and
  (6) an age of at least 50 years, unless younger and determined by the state archeologist or the commission to be of transcendent historical or cultural importance.

Source Note: The provisions of this §25.2 adopted to be effective May 20, 2013, 38 TexReg 2977