3. Rule 4 of the principal Rules is deleted and the following rule substituted therefor:
4.
—(1) No bicycle shall be used to carry at one time more persons than the number for which it is designed.
(2) Except as provided in paragraph (3), but subject to paragraph (4), no person shall be carried as a pillion passenger on a bicycle unless the bicycle is designed such as to be provided with a seat for a pillion passenger.
(3) A child below the age of 12 years may be carried on a properly constructed seat or carrier affixed to a pedal bicycle.
(4) No person below the age of 16 years shall be carried as a pillion passenger on a power-assisted bicycle.”.