Google-fu
"There are some state laws with restrictions regarding selling switchblades (see State Laws Regarding Auto-Open Knives). There are no Federal restrictions on other carriers such as UPS or FedEx regarding automatic knives. The Federal SwitchbladeAct only prohibits sending automatics through the U.S. Postal Service."
"There are some state laws with restrictions regarding selling switchblades (see State Laws Regarding Auto-Open Knives). There are no Federal restrictions on other carriers such as UPS or FedEx regarding automatic knives. The Federal SwitchbladeAct only prohibits sending automatics through the U.S. Postal Service."