The law says you must wear a seat belt, otherwise you will get a ticket.
You should always wear your seat belt no matter what (even if it is a vintage car). By the way.... the answer to your question is yes, you do have to wear your seat belt. If not, and a cop finds out, you will be fined 50$ if not more depending on what the circumstances are. I hope I helped, and have a nice day!
Not legally, in UK - must have seat and seat belt
Everyone
As of May 2014, Missouri's seat belt law states that seat belts must be worn by all passengers in the front seat. In the back seat, those younger than 16 years old must wear seat belts.
I am sure that they must be 48" and must be wearing a seat belt at all times. Remember that I said I think this is the answer. Make sure you check before doing this.
only 2 because everyone must have a seat belt on. it is illegal to not wear a seatbelt even if your in the backseat.
ANY frayed seat belt MUST be replaced. Fraying, cuts, or any other damage can and DOES make a seat belt fail. Think about this for a moment. $30 or so, OR your life..
95% of the time but only 72% of the population use a seat belt
you can legally have as many people in the car as there are seatbelts. if you only have 4 seat belts, there can only be 4 people in the car,as the law says, every person must wear a seat belt
If your seat belt doesn't fit, the only available option, (other than not buckling up) is to use a seat belt extender. A seat belt extender is typically about 8" in length and snaps into the existing seat belt, providing a longer belt and a better fit. Seat belt extenders are not universal in fit and you must get the extender for your particular vehicle. You can do so by calling the service department of your local dealership. Some dealers may charge for the extender, while others provide them free of charge.
Seat belt laws require that the belt be worn as designed. If you were not wearing the belt properly, you committed a violation.