Document ID: chunk:federal_register_of_legislation:F2021C00480:body:0:p9
Version: federal_register_of_legislation:F2021C00480
Segment Type: other
Provision Reference: 
Character Range: 26409–29383

use of the normal opening mechanism.
44.9.4.1.2.              Emergency doors shall not be of the slide-in-cavity type.
44.9.4.1.3.              Emergency doors shall not be equipped with a power-operated control system unless they can be readily opened manually.
44.9.4.1.4.              The outside handles of emergency doors shall be not more than 1,800 mm above the ground when the vehicle is standing unladen on level ground.
44.9.4.1.5.              Emergency doors shall open outwards.  Check straps, chains or other restraining devices are permitted, provided that they do not prevent the door from opening to and remaining open at an angle of at least 100 degrees.
44.9.4.1.5.1.       The requirement in clause 44.9.4.1.5 is not intended to preclude the use of power operated doors which do not normally open to 100 degrees but which can be made to open to at least 100 degrees by the operation of a device by one single movement
44.9.4.1.6.              The internal opening operation of emergency doors which are not also 'Service Door's' shall include sequential movement of 2 separate devices, with the primary opening device being designed to prevent inadvertent operation.
44.9.4.1.7.              If the emergency door is fitted with latches, they shall be of the two-stage type, i.e. they shall have a fully-latched and a secondary position.
44.9.4.1.8.              Each emergency door with a bottom edge between 1,000 mm and 2,000 mm above the ground shall have a means to assist the occupants in descending to the ground, such as footrests, with no more than 500 mm between successive footrests with the bottom tread not more than 1,000 mm above the ground.  A footrest may be a vehicle component.
44.9.4.1.9.              Each emergency door with a bottom edge over 2,000 mm above the ground shall be equipped with self-supporting steps or equivalent to provide safe evacuation of occupants to the ground.  The bottom step of the evacuation device shall be no more than 1000 mm above the around.
44.9.4.2.                    Emergency windows
44.9.4.2.1.              Each emergency window (which may include the windscreen) shall be capable of operation from both inside and from outside the vehicle and shall:
44.9.4.2.1.1.       be equipped with a window-ejecting device and/or
44.9.4.2.1.2.       be capable of being easily and instantaneously operated by one adult by means of a device which can be non-destructively tested in-service; and/or
44.9.4.2.1.3.       be made of readily-breakable safety glass.  In this case, a securely-attached means of breaking the glass shall be provided in close proximity to the emergency window on the inside of the vehicle.
44.9.4.2.2.              Emergency windows which can be locked from the outside for the purpose of securing the vehicle when unattended shall be constructed in such a way that they can always be opened from the inside of the vehicle.
44.9.4.2.3.              If the emergency window is of