Here are the car seats you will need.
Infant Car Seat
Infant car seats get designed to carry babies from birth until they reach two years of age. This seat is appropriate when they are within the weight of about 4lbs up to 40lbs.
Toddler Car Seat
Once your child is around two years of age, they should be ready for the front-facing toddler seat with a 5-point harness. This carrier applies from two to six years of age or a weight range of 20 to 65 lbs. This seat is constructed to face the front and gets used for kids who have outgrown the maximum weight and height requirement for the rear-facing seats.
Booster Seat
Your child becomes ready for a booster seat when they have grown past the weight and height limit of their toddler seat. This advancement is typically acceptable when they reach over 65 pounds or 49 inches.