Before leasing property in a park area under this part, the Director must determine that:

(a) The lease will not result in degradation of the purposes and values of the park area;

(b) The lease will not deprive the park area of property necessary for appropriate park protection, interpretation, visitor enjoyment, or administration of the park area;

(c) The lease contains such terms and conditions as will assure the leased property will be used for activity and in a manner that are consistent with the purposes established by law for the park area in which the property is located;

(d) The lease is compatible with the programs of the National Park Service;

(e) The lease is for rent at least equal to the fair market value rent of the leased property as described in §18.5;

(f) The proposed activities under the lease are not subject to authorization through a concession contract, commercial use authorization or similar instrument; and

(g) If the lease is to include historic property, the lease will adequately insure the preservation of the historic property.