<P> Scales which are not operational are often available to drivers as a' self - weigh' site, where drivers can check their axle loads without enforcement officials being involved . </P> <P> The government of the North West Territories operates only one scale . It is situated in the townsite of Enterprise, 83 kilometres north of the border with Alberta, and issues permits for vehicles from other jurisdictions as well as weighing vehicles and enforcing hours of service legislation . </P> <P> In Taiwan, weigh stations (Chinese: 地磅 站) are located on major highways, especially at all toll booths on freeways . Advanced signs tell that trucks must enter the weigh stations when the attached lights are flashing, usually when tolls are collected . </P> <P> Since the National Highway 1 was built with older designs, all weigh stations have older scales so trucks must stop . Weigh stations along the National Highway 3 have weigh - in - motion scales at 7 central and southern toll stations, but northern stations at Cidu, Shulin, and Longtan have traditional scales where trucks must stop . </P>

What types of vehicles have to stop at weigh stations