There are many types of car seats available on the market today. In order to be able to make an informed decision it is best to check out car seat manufacturers. You can also check any consumer guide for information on recalls, seats that have been crash tested, the best type of restraint systems for your child. Before that even starts be aware of the fact that there are many types of car seats. The choice you make will be based on your prior research and your child's needs. A note of caution: before you purchase a car seat check the manufacture's recommendations and be sure the seat is compatible with your vehicle.One type of car seat is the infant only car seat. This seat comes with a detachable base, comes with higher weight and height limits, harness slots that will help to change the seat from rear facing to front facing. The multiple slots can be adjusted to fit your baby. They also have handles that can be folded down while the child is in the car. They can be raised to make carrying your baby easier.Convertible car seats are bigger and heavier and may not be appropriate for some newborns. The reclining position and ease of adjusting the harness are important assets. A convertible seat can be used rear facing for most newborns and front facing for older babies over twenty pounds. The American Pediatric Association recommends a child stay rear facing until s/he reaches the maximum weight and height listed by the manufacturer. The straps and are adjustable to a child's size, the seat should be moved to the proper position for the weight and height of your baby. The seat belt should be threaded through the seat belt path.Forward facing seats cannot be used in the rear facing position. They are only for children over a year old and over twenty pounds. They can be used with either a lap only or lap/shoulder belt system.Combination seats also cannot be used in the rear facing position and are also only for babies over a year and over twenty pounds. It has an internal harness for children whose weight is between forty and fifty pounds. It can convert to a belt position booster seat by removing the harness for larger children. They can be used with lap only or lap/shoulder belts.Booster seats come in different types. Some come with shield boosters that are padded bars that lock into position much like the handlebars on carnival rides. There are booster seats that come with a high back to support your child as s/he rides in a car. Some booster car seats are built into vans and some cars. Check with your vehicle manufacturer to be sure the seat will accommodate your child's size.