 Although the TCH, being strictly a transcontinental route, does not enter any of Canada's three northern territories or run to the Canada–US border, the Trans-Canada Highway forms part of Canada's overall National Highway System (NHS), providing connections to the Northwest Territories, Yukon and the border, although the NHS (apart from the TCH sections) is unsigned.Canada's national highway system is not under federal jurisdiction or coordination, as decisions about highway and freeway construction are entirely under the jurisdiction of the individual provinces.Route numbering on the Trans-Canada Highway is also handled by the provinces.