(Some websites said it was statute 307.182 but we couldn’t find any such statute. Of course those sites also change the language of the law to say “booster seat” instead of “child passenger restraint system”.)
Seat Belt and Child Restraint Violations - FindLaw
"Section . If a motor vehicle lacks a rear passenger seat or if all of its rear seating positions are occupied by children under eight years of age, a child under eight years of age may be transported in the front seat of the motor vehicle if the child is secured properly in an appropriate child passenger safety restraint system or belt-positioning booster seat as described in Section (1), (2), or (3)."
Seat Restraints - Pacific Scientific
When any child who is in either or both of the following categories is being transported in a motor vehicle, other than a taxicab or public safety vehicle as defined in section of the Revised Code, that is required by the United States department of transportation to be equipped with seat belts at the time of manufacture or assembly, the operator of the motor vehicle shall have the child properly secured in accordance with the manufacturer's instructions in a child restraint system that meets federal motor vehicle safety standards: A child who is less than four years of age; A child who weighs less than forty pounds.
Head restraints & seats test - Insurance Institute for Highway Safety
(1) An infant or child under two years of age must be properly secured in a rear-facing child passenger restraint system in a rear passenger seat of the vehicle until the child exceeds the height or weight limit allowed by the manufacturer of the child passenger restraint system being used.(3) A child at least four years of age who has outgrown his forward-facing child passenger restraint system must be secured by a belt-positioning booster seat in a rear seat of the vehicle until he can meet the height and fit requirements for an adult safety seat belt as described in item (4). The belt-positioning booster seat must be used with both lap and shoulder belts. A booster seat must not be used with a lap belt alone.(2) A child at least two years of age or a child under two years of age who has outgrown his rear-facing child passenger restraint system must be secured in a forward-facing child passenger restraint system with a harness in a rear passenger seat of the vehicle until the child exceeds the highest height or weight requirements of the forward-facing child passenger restraint system.Officially launched on 6 February 2009, the fourth in this series of good practice manuals, jointly prepared by the FIA Foundation for the Automobile and Society, the Global Road Safety Partnership, the World Bank and WHO, focuses on seat-belts and child restraints. The launch event was held in Costa Rica in the presence of the country’s Transport Minister, Karla Gonzalez; former Formula One driver, Michael Schumacher; and Make Roads Safe Campaign Ambassador, Michelle Yeoh.
Failure to use a seat-belt is a major risk factor for road traffic deaths and injuries among vehicle occupants. Passengers who are not wearing seat-belts at the time of a collision account for the majority of occupant road traffic fatalities.
The manual is a practical guide to implementing, enforcing and evaluating seat-belt and child restraint programmes, and consists of a series of 'how to' modules. It provides evidence of why the use of seat-belts and child restraints is important and takes the users through the steps needed to assess the situation in their own countries. It then explains the steps needed to design, plan and implement a seat-belt and child restraint programme. Finally, the manual guides users on how to monitor and evaluate such programmes so that the results can be fed back into programme design. For each of these activities, the document outlines in a practical way the various steps that need to be taken.