ARM 17.30.617
ARM 17.30.617. OUTSTANDING RESOURCE WATERS -- DESIGNATION
Cite as Mont. Admin. R. 17.30.617
(1) All state surface waters located wholly within the boundaries of designated national parks or wilderness areas as of October 1, 1995, are outstanding resource waters (ORWs) . Other state waters may be designated an ORW by the department following the procedures in 75-5-316, MCA, subject to approval by the legislature.