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Bolded Info:The Navigation Laws were the most famous of the laws to enforce mercantilism. The first of these was enacted in 1650, and was aimed at rival Dutch shippers who were elbowing their way into the American carrying trade. The Navigation Laws restricted commerce from the colonies to England (and back) to only English ships, and none other.
In order to raise new revenue, Parliament in 1764 passed the Sugar Act, which imposed new charges on foreign wines, coffee, textiles, and indigo imported into the colonies and enlarged the customs service, requiring shippers to fill out documents detailing each ship's cargo and destination.