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Section | 1953 Rules | Changes to 1966 | 1969 Rules |
---|---|---|---|
Additional General Rules | 801 to 821 | ||
Automatic Block Signal System Rules | 501 to 519 | ||
Block, Interlocking and other fixed Signal Aspects and Indications (B&O Railroad) | B-281 to B-296 | ||
Block, Interlocking and other fixed Signal Aspects and Indications (C&O Railway) | 281 to 296 | ||
Block Signals and Interlocking Rules | 250 to 250-D | ||
Classification Signals | 21 to 23 | ||
Clearance Form "A" Operation | S-241 | ||
Communicating Signals | 15 to 16-I | ||
Communication Department Employees | 1800 to 1808 | ||
Conductors | 1200 to 1213 |