The present disclosure discloses a child safety seat comprising: (a) a supporting base structure adapted to be secured to a vehicle seat; (b) a child seating surface wherein the seating surface comprises a seat bottom and a seat back, and wherein the seat back has disposed therein at least one pair of laterally spaced shoulder belt restraints; (c) a child harness wherein the harness comprises a pair of shoulder belts running from the restraints in the seat back to a seat bottom locking tongue, each shoulder belt having a restraint engaging means affixed to an extreme end of the belt for insertion into the laterally spaced pair of restraints in the seat back, and a buckle affixed to the front center portion of the seat bottom for receiving the seat bottom locking tongue; and (d) an emergency means of disengaging at least one of shoulder belts from at least one of the restraints in the back of the seat, the disengaging means being actuated from the rear face or side of the seat.