Huh. Illinois, Iowa and New Hampshire have absolutely no helmet laws for motorcyclists. Alaskan passengers must always wear a helmet on a motorcycle, no matter how old they are. We were curious about which States required everyone to helmet-up and which didn’t. We then realized our country is a mixed bag of “you-musts,” “only-ifs” and “don’t-have-to-if-you-don’t-want-tos” when it comes to motorcyclists’ head protection. So, after cross-referencing and fact-checking till it started to become un-fun, we decided to put together this handy li’l infographic to aid in our understanding of who must wear a helmet and who doesn’t hafta.