(1) SHPO standards, procedures, and guidelines shall be referenced in SHPO recommendations when required by statute or rule. The standards and guidelines used by the national park service of the United States department of the interior and the advisory council on historical preservation are, in part, the standards and guidelines to be used to identify and protect heritage properties eligible for listing on the register, and are hereby incorporated by reference. These are:

(a) the secretary of the interior's standards for archaeology and historic preservation located at: 36 CFR 60 (1997) , 36 CFR 61 (1997) , 36 CFR 63 (1997) , 36 CFR 65 (1997) , 36 CFR 67 (1997) , and 36 CFR 79 (1997) ;

(b) the secretary of the interior's standards for the treatment of historic properties, as they existed on July 30, 1998;

(c) the secretary of the interior's standards for rehabilitation and guidelines for rehabilitating historic buildings, as they existed on July 30, 1998;

(d) the national park service, national register bulletin series (technical information on comprehensive planning, survey of cultural resources, and registration in the national register of historic places) , as they existed on July 30, 1998; and

(e) Advisory council regulations, 36 CFR 800 (1997) .

(2) Copies may be obtained free of charge from the State Historic Preservation Office, 1410 Eighth Avenue, Helena, Montana 59620; telephone (406) 444-7715.