<P> During the Revolution , the British blockade from 1775 to 1783 largely ended foreign trade . In the 1783 -- 89 Confederation Period , each state set up its own trade rules , often imposing tariffs or restrictions on neighboring states . The new Constitution , which went into effect in 1789 , banned interstate tariffs or trade restrictions , as well as state taxes on exports . </P>
<P> During the Revolution , the British blockade from 1775 to 1783 largely ended foreign trade . In the 1783 -- 89 Confederation Period , each state set up its own trade rules , often imposing tariffs or restrictions on neighboring states . The new Constitution , which went into effect in 1789 , banned interstate tariffs or trade restrictions , as well as state taxes on exports . </P>
what type of tariff is prohibited by the u.s. constitution
what type of tariff is prohibited by the u.s. constitution
interstate tariffs
interstate tariffs