The Secretary may obtain by donation or purchase preservation easements on historically or culturally significant (as determined by the Secretary) buildings and open spaces located within the preservation district. Each preservation easement shall contain (but need not be limited to) provisions that the Secretary shall have the right of access at reasonable times to the portions of the property covered by that easement for interpretive or other purposes, and that no changes or alterations shall be made to such portions of the property except by mutual agreement.

The Secretary may mark, interpret, and provide technical assistance to properties within the preservation district in accordance with the Secretary of the Interior’s Standards for Historic Preservation Projects.