Many places in the US, you can be ticketed if a passenger isn't wearing a seatbelt. But I think the point GP is making is that it's also not a primary offense i

Many places in the US, you can be ticketed if a passenger isn't wearing a seatbelt. But I think the point GP is making is that it's also not a primary offense in may jurisdictions -- you can't be pulled over for it specifically, but it's fair game if you get pulled over for something else.