15 U.S.C. § 73 : US Code - Section 73: Agreements involving restrictions in favor of imported goods

Search 15 U.S.C. § 73 : US Code - Section 73: Agreements involving restrictions in favor of imported goods

If any article produced in a foreign country is imported into the
United States under any agreement, understanding, or condition that
the importer thereof or any other person in the United States shall
not use, purchase, or deal in, or shall be restricted in his using,
purchasing, or dealing in, the articles of any other person, there
shall be levied, collected, and paid thereon, in addition to the
duty otherwise imposed by law, a special duty equal to double the
amount of such duty: Provided, That the above shall not be
interpreted to prevent the establishing in this country on the part
of a foreign producer of an exclusive agency for the sale in the
United States of the products of said foreign producer or merchant,
nor to prevent such exclusive agent from agreeing not to use,
purchase, or deal in the article of any other person, but this
proviso shall not be construed to exempt from the provisions of
this section any article imported by such exclusive agent if such
agent is required by the foreign producer or if it is agreed
between such agent and such foreign producer that any agreement,
understanding or condition set out in this section shall be imposed
by such agent upon the sale or other disposition of such article to
any person in the United States.