When will BIA grant a right-of-way for a new use within or overlapping an existing right-of-way?

We may grant a new right-of-way within or overlapping an existing right-of-way if it meets the following conditions: (a) The applicant follows the procedures and requirements in this part to obtain a new right-of-way. (b) The new right-of-way does not interfere with the use or purpose of the existing right-of-way and the applicant has obtained the consent of the existing right-of-way grantee. The existing right-of-way grantee may not unreasonably withhold consent.