Question: is it against the law to drive without a car seat?
Answer: Washington. Updated in 2007, Washington law requires that children less than eight years old be restrained in appropriate child restraint systems (car seats or booster seats) unless the child is 4'9" tall. ... Children who are 8 or older, or who are 4'9" or taller, must use a seatbelt or appropriate child safety restraint.