--- kind: "section" citation: "49 C.F.R. § 299.415" title: "49" number: "299.415" heading: "Doors." url: "https://uscodex.org/cfr/49/299.415" --- # §299.415. Doors. - (a) Each powered, exterior side door in a vestibule that is partitioned from the passenger compartment of a trainset shall have a manual override device that is— - (1) **Capable of releasing the door to permit it to be opened without power.** - (2) **Located such that—** - (i) Interior access is provided adjacent to each manual door release mechanism; and, - (ii) **Exterior access is provided on each side of each car.** - (3) Designed and maintained so that a person may access and operate the override device readily without requiring the use of a tool or other implement. - (4) The railroad may protect a manual override device used to open a powered, exterior door with a cover or a screen. - (5) When a manual override device is activated, door panel friction, including seals and hangers, shall allow the doors to be opened or closed manually with as low a force as practicable. - (6) The emergency release mechanism shall require manual reset. - (b) Each passenger car shall have a minimum of one exterior side door per side. Each such door shall provide a minimum clear opening with dimensions of 813 mm (32 inches) horizontally by 1,850 mm (72.8 inches) vertically. - (c) Door exits shall be marked, and instructions provided for their use, as specified in [§ 299.423](/cfr/49/299.423.md). - (d) All doors intended for access by emergency responders shall be marked, and instructions provided for their use, as specified in [§ 299.423](/cfr/49/299.423.md). - (e) **Vestibule doors and other interior doors intended for passage through a passenger car.** - (1) **General.** Except for a door providing access to a control compartment each powered vestibule door and any other powered interior door intended for passage through a passenger car shall have a manual override device that conforms with the requirements of paragraphs [(e)(2)](#e-2) and [(3)](#e-3) of this section. - (2) **Manual override devices.** Each manual override device shall be: - (i) Capable of releasing the door to permit it to be opened without power; - (ii) Located adjacent to the door it controls; and - (iii) Designed and maintained so that a person may readily access and operate the override device from each side of the door without the use of a tool or other implement. - (3) **Marking and instructions.** Each manual override device and each retention mechanism shall be marked, and instructions provided for their use, as specified in [§ 299.423](/cfr/49/299.423.md). - (f) The status of each powered, exterior side door in a passenger car shall be displayed to the driver in the operating cab. Door interlock sensors shall be provided to detect trainset motion and shall be nominally set to operate at 5 km/h. - (g) **All powered exterior side passenger doors shall—** - (1) Be equipped with the service-proven door safety system utilized by the N700 or an alternate door safety system designed subject to a Failure Modes, Effects, Criticality Analysis (FMECA); - (2) Be designed with an obstruction detection system capable of detecting a rigid flat bar, 6.4 mm ( 1/4 inches) wide and 76 mm (3 inches) high and a rigid rod, 9.5 mm ( 3/8 inches) in diameter; - (3) Incorporate an obstruction detection system sufficient to detect large obstructions; - (4) Be designed so that activation of a door by-pass feature does not affect the operation of the obstruction detection system on all the other doors on the trainset; - (5) Have the door control station located in a secured area that is only accessible to crewmembers or maintenance personnel; - (6) Be designed such that the door open or closed circuit is not affected by the throttle position; and - (7) Use discrete, dedicated trainlines for door-open and door-close commands, door-closed summary circuit, and no motion, if trainlined. - (h) **All powered exterior side door systems in a trainset shall—** - (1) **Be designed with a door summary circuit.** The door summary circuit shall be connected or interlocked to prohibit the trainset from developing tractive power if an exterior side door in a passenger car, other than a door under the direct physical control of a crewmember for his or her exclusive use, is not closed; - (2) Be connected to side door status indicators located on the exterior of each unit of the trainset; - (3) Be connected to a door summary status indicator that is readily viewable to the driver from his or her normal position in the operating cab; - (4) If equipped with a trainset-wide door by-pass device, be designed so that the trainset-wide door by-pass functions only when activated from the operating cab of the trainset; - (5) Be equipped with a lock (cut-out/lock-out) mechanism installed at each door panel to secure a door in the closed and locked position. When the lock mechanism is utilized to secure the door in the closed position, a door-closed indication shall be provided to the door summary circuit; and - (6) Be designed such that a crew key or other secure device be required to lock-out an exterior side door to prevent unauthorized use. - (i) - (1) **Visual inspections and functional tests.** The inspection and functional tests required for the door safety system, including the trainset-wide door by-pass verification, shall be conducted in accordance with the railroad's trainset inspection, testing, and maintenance program in accordance with [§ 299.445](/cfr/49/299.445.md), and operating rules under subpart E. - (2) **Face-to-face relief.** Crewmembers taking control of a trainset do not need to perform a visual inspection or a functional test of the door by-pass devices in cases of face-to-face relief of another trainset crew and notification by that crew as to the functioning of the door by-pass devices. - (j) The railroad shall maintain a record of each door by-pass activation and each unintended opening of a powered exterior side door, including any repair(s) made, in the defect tracking system as required by [§ 299.445(h)](/cfr/49/299.445.md?p=h). ## Notes ### Authority Authority: 49 U.S.C. 20103, 20107, 20133, 20141, 20302-20303, 20306, 20701-20702, 21301-21302, 21304; 28 U.S.C. 2461, note; and 49 CFR 1.89. ### Source Source: 85 FR 69731, Nov. 3, 2020, unless otherwise noted.