См. также: at 1991 prices, at the direction of, at the head office, at noon
An excise or excise tax is any duty on manufactured goods which is levied at the moment of manufacture, rather than at sale. Excises are often associated with customs duties (which are levied on pre-existing goods when they cross a designated border in a specific direction); customs are levied on goods which come into existence – as taxable items – at the border, while excise is levied on goods which came into existence inland. (Wikipedia)
They were stopped at the border. (Oxford Advanced Learner's Dictionary)
Examination of freight. Examination may occur at the border, or inland at the carrier’s sufferance warehouse in the case of mixed loads. (Canada Border Services Agency)
