According to
SelfDefenCe.comPEPPER SPRAY REGULATIONS
Pepper spray cannot be shipped outside the United States.
Pepper spray is legal in all 50 states. Due to the nature of the product, shipping regulations require pepper spray to be shipped via ground delivery only (air services not allowed). Possession and/or use may be regulated or prohibited by law in some jurisdictions (see below for known regulations). If there are any questions, check with your local police department.
Wisconsin - Special state formulation does not allow UV dye (see our Wisconsin Approved State Formulas)
Michigan - Specific pepper or tear gas formulations are required (see our Michigan Approved State Formulas)
New York - Must be purchased from a New York state licensed firearm dealer or pharmacist
Massachusetts - Must have Firearms Identification Card (FID)
(Edited by Brother Love at 10:02 pm on Feb. 2, 2004)