car seat age limit

What is the age limit to use a car seat and also weight?

Below are the age limits with their listed weights and heights regarding car seats for children.

REAR FACING SEATS
in the back seat from birth to at least 1 year old and at least 20 pounds.

FORWARD-FACING TODDLER SEATS
in the back seat from age 1 and 20 pounds to about age 4 and 40 pounds.

BOOSTER SEATS
in the back seat from about age 4 to at least age 8, unless 4′9″ tall.

SAFETY BELTS
at age 8 and older or taller than 4′9″. All children age 12 and under should ride in the back seat.

Hot cars and hot summers
I come from an age when cars had bucket seats, stick shifts, double-barreled carburetors and no air conditioning. These were the days when cooling the inside of an automobile robbed horsepower from those mighty mills that hurled us like rockets through the muggy nights of South Carolina summers.