①The driver of a motor vehicle (other than a standard or large motorcycle; the same applies hereinafter in this Article) must not drive without fastening the seatbelt that is required to be installed in the motor vehicle pursuant to Chapter III of the Act on Vehicles for Road Transportation and pursuant to orders based upon that Act (hereinafter referred to as a "seatbelt"); provided, however, that this does not apply if the driver's restraint by a seatbelt is not appropriate in light of the medical treatment that the driver is receiving for an illness, if the driver in question is the driver of an emergency motor vehicle and is driving that emergency motor vehicle, or if there are any other compelling circumstances that Cabinet Order prescribes.

②The driver of a motor vehicle must not carry a person unrestrained by a seatbelt on equipment, other than the driver's seat, that is meant to carry a person (but only in a motor vehicle in which such equipment must be equipped with seatbelts; the same applies hereinafter in this paragraph) as a passenger in the motor vehicle; provided, however, that this does not apply if the driver is carrying a child not yet of school age (other than one that is of sufficient height when seated for a seatbelt to be fastened appropriately; the same applies hereinafter in this Article) on such equipment, if the driver is carrying a person whose restraint by a seatbelt is not appropriate in light of the medical treatment that the person is receiving for an illness on such equipment, or if there are any other compelling circumstances that Cabinet Order prescribes.

③The driver of a motor vehicle must not carry a child not yet of school age unrestrained by child restraints (meaning restraints fixed to a seat and used to replace the functions of a seatbelt when a child not yet of school age is on board, which comply with Chapter III of the Act on Vehicles for Road Transportation and orders given under that Chapter and which are configured for the size of a child not yet of school age; the same applies hereinafter in this paragraph) as a passenger in the motor vehicle; provided, however, that this does not apply if the driver is carrying a child not yet of school age whose restraint by child restraints is not appropriate in light of the medical treatment that the child is receiving for an illness or if there are any other compelling circumstances that Cabinet Order prescribes.