“For newborns, a appropriately fitting harness and recline angle supportive in their airway will provide them with the best protection.” Lower anchors have weight limits set from the automobile and car seat manufacturers. You can identify the decrease anchor weight limit by checking the warning label or installation diagrams Found https://juliuswqizq.wikiusnews.com/1253755/not_known_details_about_car_seats_on_amtrak