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gave the Interstate Commerce Commission the power to regulate railroads -
prohibited the sale of misbranded or adulterated food and drugs in interstate commerce
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requires that all meat sold commercially be inspected and passed to ensure that it is safe, wholesome, and properly labeled
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grants Congress the authority to issue an income tax without having to determine it based on population -
it prevented act of unfair competition. it forced us to have fair competition and couldn't harm consumer.