13. If a toilet is fitted in a regulated rail vehicle that vehicle shall comply with the following requirements—
(a)the centre of any door control device on the exterior or the interior of the toilet cubicle shall be not less than 800 millimetres and not more than 1,200 millimetres vertically above the floor;
(b)any door control device, or other equipment inside the toilet cubicle shall be operable by the exertion of a force of not more than 15 newtons;
(c)the seat and any lid on the toilet and any handholds in the toilet cubicle shall be coloured to contrast with the adjacent parts of the toilet cubicle;
(d)the immediate surround of a control device in a toilet cubicle shall be coloured to contrast with that control device and with the part of the toilet cubicle on which it is mounted; and
(e)a control device in a toilet cubicle shall be so constructed as to be identifiable by touch.