21.7. Under what conditions is it allowed to transport a child in a passenger car without using child restraint systems that allow the child to be fastened with seat belts?
UAЗа яких умов дозволено перевозити дитину в легковому автомобілі без використання дитячих утримуючих систем, що дають змогу пристебнути дитину за допомогою ременів безпеки?
This is an exam question from the Traffic Rules of Ukraine concerning passenger safety and the proper transportation of children in a passenger car. The traffic rules emphasize that the standard seat belt should work effectively and not injure the child during sudden braking or an accident, since seat belts and airbags are primarily designed for the parameters of an adult.
The question tests knowledge of the section of the Traffic Rules regarding the transportation of passengers, specifically the requirements of clause 21.11 (b) concerning child restraint systems. The logic of the rule is simple: if the child's height is insufficient, the belt may run across dangerous areas (neck, face) or not properly secure the pelvis, so a car seat, booster, or another restraint system is needed to allow the child to be correctly fastened with the standard seat belt.
During the theoretical exam, it is important not to confuse the criteria: the option about a height less than 145 cm does not correspond to the current version of this requirement, and the option about being under 12 years old is incorrect, because the Traffic Rules of Ukraine in this matter are based not on age, but specifically on height. The only correct approach within this rule: transportation without child restraint systems is allowed only when the child's height already meets the threshold at which the standard seat belt provides proper seating and fixation.
Clause 21.11 [b]
It is prohibited to transport children whose height is less than 150 cm in vehicles without using child restraint systems that allow the child to be fastened with seat belts provided by the design of that vehicle.
Explanation of application: from this provision, it follows the condition under which transporting a child in a passenger car may be carried out without a child restraint system — only if the child's height is not less than 150 cm (that is, 150 cm or more).
That is, the correct answer is "If the child's height is 150 cm or more," considering that according to the definition in the Traffic Rules, it is prohibited to transport children shorter than 150 cm without child restraint systems, and therefore, without such systems, transportation is allowed only if the height is 150 cm or more.
In the Traffic Rules, the issue of transporting children in a passenger car is linked not to age, but to height. This is because the standard seat belt is designed for adult parameters and must pass over the correct areas of the body to restrain the passenger without causing injury.
Clause 21.11 (b) establishes a prohibition: if a child's height is less than 150 cm, it is not allowed to transport them in a vehicle without a child restraint system that enables the child to be fastened with the standard seat belt. That is, for children shorter than 150 cm, a car seat, booster, or another permitted restraint system is mandatory to ensure the correct belt position.
The logic of the rule is simple: when a child is shorter than 150 cm, the belt usually sits too high (for example, closer to the neck) or presses the body incorrectly, and during sudden braking or an accident, this significantly reduces the level of protection. The child restraint system raises and secures the child so that the standard belt functions properly.
Therefore, without the use of child restraint systems in a passenger car, a child may be transported only when they have reached a height at which the standard seat belt provides proper fastening without additional devices.
Thus, the correct answer is "If the child's height is 150 cm or more," since according to clause 21.11 (b), children under 150 cm must be transported using child restraint systems, and without them it is allowed only from 150 cm.