Car booster seats till what age/height

my kids take the bus to south mountain daily - I'm pretty certain they buckle up once they sit down. I've also been on many school trips with them where we've traveled via schoolbus. The buses most definitely have seatbelt

spontaneous said:

susan1014 said:
My kids are made to wear seat belts in buses, whether for school or camp field trips. Whether or not it is the law, it is the firmly enforced rule for all of the buses my kids ride, I believe.

I have yet to be on a bus that had seat belts. Has this changed recently