Once your child exceeds those generous limits for harness mode the seat can be used in high back booster mode up to 120 lbs 62 inches. In fact you can use the frontier sear in harness mode up to 90 lbs 58 inches which is the sort of maximum child weightheight limits that you would find on most high back booster seats. High back booster seat height requirements. From when kids surpass their car seat limits until they are at least four feet nine inches tall. In this state all children who weigh less than 80 pounds or are under eight years of age need to be in a booster seat or appropriate car seat. High back booster seat weight requirements.

There may not be a perfect size to determine booster seat usage but the childs height will ultimately help determine how the lap belt fits. The state also recommends that they stay in a booster seat until they are 100 pounds in weight or 49 in height although this is not mandatory. There is also the belt positioning booster. All children whose weight or height exceeds the forward facing limit for their car safety seat should use a belt positioning booster seat until the vehicle seat belt fits properly typically when they have reached 4 feet 9 inches in height and are 8 to 12 years of age. Booster seat laws vary from state to state. Are at least 4 years old and at least 35 inches 88 cm tall.

The american academy of pediatrics aap recommends that children should use the built in harness system for as long as possible until they reach the maximum forward facing weight or height for their car seat and after reaching the maximum forward facing weight and height that children 4 feet 9 inches tall or under should ride in a belt positioning booster seat. Aaa provides a complete overview of the guidelines for each state on its websitewhile the age height and weight requirements vary most states require that children use car seats and booster seats from when they are born until they are around eight years old. Kids can use a high back booster seat whenever they outgrow their car seat usually when they reach 40 to 65 pounds until they weigh 120 pounds. Have grown out of their forward facing car seat. These seats have a higher back that will provide head and neck support in case of a crash if the vehicle does not have a high enough seat for the child. Children may begin using a booster seat as early as the age of 3 but the car seat lady asserts that as many as 50 percent of 10 year old children still require booster seats for optimum lap belt placement.

The combination high back can be used as a car seat with a 5 point harness for children up to a specified weight or as a belt positioning booster.

Gallery of Height Weight Requirements For High Back Booster