Children under the age of 7 are required to ride in a child restraint in accordance with manufacturer's instructions.
A lap & shoulder belt may be substituted for children under the age of 7 who weight at least 80 pounds and who are at least 57 inches tall.
A lap belt may be used by children over 40 pounds who ride in vehicles with lap-only seat belts. (This is because booster seats require both a lap and shoulder belt for correct use.)
Children ages 7 through 17 must be properly secured in a seat belt or child restraint.
The law applies to all seating positions - front seat and back seat.
The driver is responsible for assuring that all occupants under the age of 18 are buckled up in the appropriate restraint.
The penalty for violation is one point against the license of the driver and a fine.