[stayinhomewithmy3]

The height limits for the seat are only guidelines. Your son has truly outgrown the seat if his shoulders are above the top harness slots or his ears are above the top of the seat back. If he has outgrown it in either of these 2 ways, you need to move him to either a higher weight harnessing (HWH) seat or a belt positioning booster (BPB) seat. His age and weight are the determining factors in deciding between a HWH seat or a BPB. If he is under 4 or 40 lbs, he most definitely needs a HWH seat. If he is over 4 and 40 lbs, he may be able to use a BPB, but it is preferred that kids ride harnessed until about the age of 5.

	Booster Seat A booster seat raises your child up so that the car's lap and shoulder belts fit correctly. The lap belt should fall across the upper thighs. The shoulder belt should go across the middle of the shoulder and chest. A booster seat is used for older children up to about 80 pounds. Some states have passed laws requiring booster seats for children up to age 8 or 80 pounds. Check your state's law.

	Higher Weight Harnessing Higher weight harnessing seat. A convertible or combination seat that harnesses past 40lbs.