Original 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)

79.4    Warning Signs

At every cattle guard, gate or other opening in the fence surrounding the third rail, a sign bearing the words, “Danger,” “Electric Third Rail” and “Keep Away,” in letters at least three inches in height, shall be installed.  The sign 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