Modifies provisions relating to child safety seat requirements

This bill updates the rules for how children under sixteen must be secured in vehicles, directly affecting drivers and parents. It requires rear-facing seats for children under two years old, child safety seats for those under four or weighing less than forty pounds, and booster seats for children between four and eight years old who weigh at least forty pounds. Drivers who fail to follow these requirements face a fine of up to fifty dollars, while public carriers and school buses are exempt from these rules. Additionally, the bill allows for a specific exception where a child in a booster seat may wear only a lap belt if the back seat lacks a shoulder belt and there are more children than available seating positions.