This came up this past weekend, when I was visiting my mother in CT. I forgot my helmet back at home in PA, so was riding without one on an old bike that she picked up at a yard sale. As I started riding up one of the main roads, it occurred to me that I might be in violation of some sort of state law regarding helmets. I had more than one run-in with the State Police when I was growing up there, so I know they won't hesitate to stop you if they feel you are in violation of some minor statute. Does anyone know how I can find out what the laws are in various states concerning mandatory helmet use? Are the laws generally age-specific (kids must wear helmets, optional for adults)? My 14-year-old son also rides there when we visit.