APHIS/Lacey Act: "The Lacey Act combats trafficking in “illegal” wildlife, fish, and plants. Among other things, it makes it unlawful to import certain plants and plant products without an import declaration."
APHIS Core/Non-Lacey Act: "The mission of the USDA, Animal and Plant Health Inspection Service (APHIS) is to protect U.S. agricultural resources from pests and diseases, manage wildlife damage, regulate genetically engineered organisms, and administer the Animal Welfare Act
USDA/APHIS Lacey Act Guidelines
USDA/APHIS Core, Non-Lacey Act Information