Notice of penalty fare provisions
53.—(1) It is the duty of the promoter to secure that a warning notice meeting the requirements of paragraph (2) is posted—
(a)at every rapid transit stop, in such a position as to be readily visible to prospective passengers; and
(b)in every rapid transit vehicle, in such a position as to be readily visible to passengers travelling on that rapid transit vehicle.
(2) A warning notice posted under paragraph (1) must (however expressed) indicate the circumstances (as provided in article 50 (penalty fares)) in which passengers may be liable to pay a penalty fare and state the amount of the penalty fare.