http://www.dot.gov.nt.ca/_live/documents/documentManagerUpload/Schedule%2011%20-%20Toll%20System%20Protocol,%20Supply%20and%20Management%20Agreement.pdf Toll System Protocol, Supply & Management Agreement] - Schedule 11 of the Concession Agreement Tolls are only charged to commercial vehicles that are travelling north and weigh over 4500 kilograms ; private vehicle traffic do not pay tolls.