Class 2 (gases) material cylinders.

(a)Except as provided in paragraphs (b) and (c) of this section, cylinders containing Class 2 (gases) materials being transported in a rail car must be:#

(1)Securely lashed in an upright position so as to prevent their overturning;#

(2)Loaded into racks securely attached to the car;#

(3)Packed in boxes or crates of such dimensions as to prevent their overturning; or#

(4)Loaded in a horizontal position.#

(b)Specification DOT-4L (§ 178.57 of this subchapter) cylinders being transported in a rail car must be loaded in an upright position and be securely braced.#

(c)Cylinders containing Class 2 (gases) materials may be transported in stock cars, gondola cars and flat cars. However, they may not be transported in hopper bottom cars.#