Helmet law is administered at the state level, and has changed over time. See e.g. Map of motorcyle helmet laws, which currently (June 2015) shows no law in New Hampshire, and only compulsory for riders under 17 in many other states. Why ? read more
In the US: Helmet use is compulsory for some people in every state (except Iowa and Illinois - seeing contradictions about New Hampshire laws), such as minors and people who are riding on permits or those taking their riding test. Some states have compulsory helmet laws - California for example - for everyone. read more
One of the most contentious topics in the bicycling world is helmets, and not which color is prettiest. Some Dutch readers recently chimed in on a TreeHugger post to tell us why they don't wear helmets. read more
June 13, 2015 Why I’m done wearing a helmet. Lindsey Helmets, Public health 45 Comments. I’m done wearing a bike helmet. Now, don’t hold me to that. Maybe I’ll want one in the winter when the roads are icy. read more