New York: New York residents may only purchase defense sprays from licensed Firearms Dealers or licensed Pharmacists in that state.
Massachusetts: Massachusetts residents may only purchase defense sprays from licensed Firearms Dealers in that state.
States Where Pepper Sprays Have Some Restrictions
Michigan: OC Pepper spray can be no stronger then a 2% concentrate (Different companies can sell different concentrations.) CS is the only Tear Gas accepted and can be no larger then 35 grams per can. No combination spray allowed.
Wisconsin: Pepper only. No Tear gas, UV Dye or combination sprays. OC can be no stronger then a 10% solution. Can must be between 15-60 grams only. Must have safety feature.