The Northwest Territories Transportation of Dangerous Goods Act (1990) came into effect on August 1, 1991. The Transportation of Dangerous Goods Act is the territorial complement of the federal Transportation of Dangerous Goods Act. Where the federal legislation applies to the transportation modes subject to its jurisdiction (i.e., air marine, rail, pipeline and inter-provincial/territorial trucking), the territorial Act applies to intra-territorial trucking operations. In the interests of consistency and national uniformity, the territorial Act invokes the federal regulations pursuant to the federal Act. In this way, hazardous cargoes moving in Canada from one mode of transportation to another and/ or between jurisdictions are always subject to the same dangerous goods regulations.