(2) Any autobus used for such purpose shall:(1) have a seating capacity for at least ten school children and be painted yellow, if used exclusively for the conveyance of school children;
(2) be equipped with:(a) at least two doors, one at the front and the other at the rear or side, or one door at the front and windows specially equipped to enable the vehicle to be quickly evacuated in case of accident;
(b) a chemical fire-extinguisher of a type approved by the Department;
(c) a light of at least two candle-power to light the interior at night;
(d) a notice placed in front and another at the rear, in letters at least eight inches high, bearing the words “school bus” or “écoliers”; the letters of such notices shall be black on a white or yellow background and shall be clearly legible;
(e) two intermittent amber lights in front, placed as near as possible to the top of the vehicle with a space between them;
(f) two intermittent red lights in the rear, placed as near as possible to the top of the vehicle with a space between them.
Such lights must be visible by day and at night, at a distance of five hundred feet and shall not be put in operation by the driver except when school children are boarding or leaving the vehicle.
When the autobus is not conveying school children, the notices mentioned in paragraph d shall be removed or covered.