When tank cars are located on a dead-end siding, they shall be protected from any oncoming car by a locked switch which shall positively prevent collision with the tank car. If on an open siding, tank cars shall be protected by locked switches at both ends. Locked switches shall be located not less than 15 feet from either or both ends of tank cars. Keys for switches shall be available only to persons having certificates of fitness.
If unloading operations are carried on at night, an approved vaporproof red electric light shall be installed at the location of each locked switch and shall be kept lighted at all times when the tank car is connected to the unloading line.
(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)