I did Google searches and a search here, but can't find specific info on where pepper spray can or cannot be carried. I know you cannot bring pepper spray on airplanes. I checked my County Sheriff website but there is no information on Spray specifically. My wife won't carry a handgun but will carry pepper spray. My daughter just turned 18 and asked for some protection and will carry pepper spray. My wife works for the state of Oregon and my daughter is still in high school. Are there obvious problems if they have a small can on their key rings?