non-importation
/ˌnɒnɪmpɔːˈteɪʃn/noun
Failure or refusal to import goods, especially (US History ) in contravention of agreements or acts made by American colonial governments between 1768 and 1774 to prevent the import of goods from Britain.
Origin
Mid 18th century. From non- + importation. Compare French non-importation.