What are the basic requirements and procedure for the conversion of vehicles? The conversion of vehicles must be carried out in accordance with the requirements of the Law of Ukraine “On Road Traffic”. Thus, this law stipulates that the conversion of vehicles, that is, changing the type or brand (model), purpose or design parameters of vehicles in operation, by installing the cab, body or their parts, special equipment and number units not provided for by the regulatory and technical documentation for this vehicle, must comply with the rules, standards and standards of Ukraine.