If your grandkids take the old 4-wheeler out for a ride on the back 40 without wearing a helmet, you’re now breaking the law. Starting July 1, 2017, a major new law affecting outdoor recreation took effect with barely a whisper in the general media. House Enrolled Act 1200 states that everyone under the age of 18 must wear a helmet when operating any off-road-vehicle (ORV). The law is intentionally broad and covers nearly every type of ORV on public or private property.