(a) Notwithstanding any other provision of this article, the department may enter into a restoration agreement with Save Mount Diablo, a nonprofit organization, for the purpose of restoring the Mount Diablo Beacon on top of the Summit Building in Mount Diablo State Park. The agreement shall include, but is not limited to, all of the following:

1. (1) A requirement that the restoration agreement shall follow the United States Secretary of the Interior’s Standards for the Treatment of Historic Properties guidelines and the guidelines set forth by the American Institute for Conservation of Historic and Artistic Works.
2. (2) A requirement that the restoration agreement shall also comply with any applicable code of ethics or guidelines for practice governing the rehabilitation and preservation of historical sites and buildings. All plans for the work, the work in process, and the finished work shall be audited by a conservator company pursuant to a contract with the company.
3. (3) All costs of the restoration of the Mount Diablo Beacon shall be incurred under the authority of, and be the responsibility of, Save Mount Diablo.