General Order 95

Section VII

Detailed Construction Requirements for Trolley and Electric Railway
Contact and Feeder Conductors and Their Supporting Messengers,
Span Wires, Etc. (Class T Circuits)

79.5    Warning Signs

At every gate, at each station or passenger loading platform, and at intervals of not more than 500 feet along each fence enclosing the rights–of–way, a sign or signs bearing the words “Danger”, “Electric Third Rail” and “Keep Away” in letters at least 3 inches in height, shall be installed. The sign or signs may carry other information relative to the hazard present, but these three items shall be in type of larger size than the type of the additional items.