Editing Trans-Canada Highway (section)

==Jurisdiction and designation==
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| footer = Examples of marker variations between provinces: British Columbia, Quebec, and Newfoundland and Labrador
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Canada's National Highway System is not under federal jurisdiction or coordination, as highway construction and maintenance are entirely under the [[Works and Undertakings|jurisdiction of the individual provinces]], which also handle route numbering on the Trans-Canada Highway. The Western provinces have voluntarily coordinated their highway numbers so that the main Trans-Canada route is designated Highway&nbsp;1 and the Yellowhead route is designated Highway&nbsp;16 throughout. Prince Edward Island and Newfoundland and Labrador also designate Highway&nbsp;1 as their section of the TCH, while New Brunswick uses Highway&nbsp;2 (a separate important highway—albeit non-TCH—is Highway&nbsp;1 in that province). East of Manitoba, the highway numbers change at each provincial boundary, or within a province (especially in Ontario and Quebec) as the TCH piggybacks along separate provincial highways (which often continue as non-TCH routes outside the designated sections) en route. In addition, Ontario and Quebec use standard provincial highway shields to number the highway within their boundaries, but post numberless Trans-Canada Highway shields alongside them to identify it. As the Trans-Canada route was composed of sections from pre-existing provincial highways, it is unlikely that the Trans-Canada Highway will ever have a uniform designation across the whole country.