Graco car seats and booster seats are good for at least ten years. Just like most car seats, they are helpful for 7-10 years with proper use. Graco recommends you use belt-positioning booster seats and backless boosters for no longer than ten years, as their safety will be compromised after that period. The plastic reinforced belt-positioned car seats are good for at least seven years. Note that you should not use the car seat past its expiration date.