Source for last: https://help.cbp.gov/app/answers/detail/a_id/1273/kw/beef%20jerky%20vacuum%20packed/session/L3RpbWUvMTM5NzI1OTkyNi9zaWQvMU1DQ195Umw%3D/suggested/1

Das Google is wonderful, if a little freeky:)