Import Activity Summary Statement Law and Legal Definition
The term "import activity summary statement" refers to “data or information transmitted electronically to the Customs Service, in accordance with such regulations as the Secretary prescribes, at the end of a specified period of time which enables the Customs Service to assess properly the duties, taxes and fees on merchandise imported during that period, collect accurate statistics and determine whether any other applicable requirement of law (other than a requirement relating to release from customs custody) is met.” (19 USCS § 1401)