Tariff engineering was validated following the 1881
United States Supreme Court case of
Merritt v. Welsh, which dealt with the classification of imported sugar. In this case, the importer added
molasses to highly refined sugar which darkened the sugar's color. At that time, the tariff classification for sugar was based on the Dutch standard color, which generally corresponded to actual sugar quality. The Port of New York performed a chemical analysis and determined if molasses had been intentionally added to the sugar for the purpose of reclassification on the tariff schedule. After having found that molasses had been added, the Port of New York applied the higher rate of tariff. The
United States Supreme Court found that even though the molasses was added, Congress had clearly stated that the test to be used was the Dutch standard test, and not any other chemical analysis. Thus, the Port of New York was obligated to classify the sugar based solely on the Dutch standard color and must only charge the lower rate of tariff. In explaining his position,
Justice Matthews wrote for the majority, "Great stress is laid on the charge that sugars are manufactured in dark colors on purpose to evade our duties. Suppose this is true; has not a manufacturer a right to make his goods as he pleases? If they are less marketable, it is his loss; if they are not less marketable, who has a right to complain? If the duties are affected, there is a plain remedy. Congress can always adopt such laws and regulations as it may deem expedient for protecting the interests of the government." == Examples ==