Rule 28. Self-propelled Machines

1. When self-propelled machines are used in yards (other than round house, coal chute, shop, material and store department yards), a yard foreman will be assigned.
2. Self-propelled machines will not be used for switching service except that:
   1. Switching with self-propelled machines confined to restricted territory, such as round house, coal chute, shop, material and store department yards, is permissible when such machines are piloted by a yardman. Switching with self-propelled machines as herein provided will not operate them to supplant yard engines now in such service or which may be placed in such service.
   2. Moving of one car at a time in such restricted territory for the purpose of loading or unloading at different spots on the same track, setting the first car out on another track, and/or picking up the first car to permit continuing the loading or unloading will not be considered as switching requiring a pilot.

Note: The provisions of rule 28 as quoted above do not reflect the amendments thereto contained in Article 3 of the national agreement of June 25, 1964.