How much should a child weigh before sitting in front seat in California?

How much should a child weigh before sitting in front seat in California?
until the child is 6 years old OR weighs 60 lbs is the California state law. HOWEVER. Recent child safety research has deduced that until the child is 4 foot 9 inches, they should ride in a booster seat whether in the front seat or back seat. For safety's sake, you should wait till the child is 12 years old before allowing them to sit up front. You can also look at the Owner's Manual in the car and it MIGHT have recommended height/ages for that particular make of car. Remember to keep the child's safety in mind first.