(1) In consultation with the SHPO, the department shall assure that any historic, prehistoric or architectural property identified in a project's area of potential impact has been professionally assessed to determine whether it is a heritage property. That assessment shall include the following:
(a) The department shall seek the SHPO's written assessment of whether the property qualifies as a heritage property.
(b) The SHPO shall provide the department with a written assessment of any site's value as a heritage property within ten working days of receipt of a request for the assessment. Assessment comment period may be extended an additional five working days to a maximum total of 15 working days upon request by SHPO and concurrence by the department.
(2) Any heritage properties identified on land owned or controlled by the department shall be considered for nomination to the National Register of Historic Places.