Rules 301 to 375 will not be effective except by special instructions.

301.

Where the semaphore is used, the governing arm is displayed to the right of the signal mast as seen from an approaching train, and the indications are given by positions:

Horizontal as the equivalent of Stop.
Vertical as the equivalent of Proceed.
Diagonal as the equivalent of Caution.

302. Block signals control the use of the blocks, but, unless otherwise provided, do not affect the movements of the trains under the time-table or train rules; nor dispense with the use or the observance of other signals whenever and wherever they may be required.

311. The normal indication of Home Block Signals is Stop.

312. Signals must be operated carefully and with a uniform movement. If a signal fails to work properly its operation must be discontinued and the signal secured so as to give the normal indication until repaired:

313. Signalmen must observe, as far as practicable, whether the indication of the signals corresponds with the position of the levers.

314. Signalmen must not make nor permit any unauthorized alterations or additions to the apparatus.

315. A block record must be kept at each block station on which the Signalman will record the time each train passes his station and the adjoining station in each direction. All crossover movements must be entered on the block record.

316. The prescribed telegraph signals are as follows:
1--Display Stop-signal. Answer by S D or 5.
2--Block clear. Answer by 13.
3--Block wanted. Answer by 2 or 5.
4--Train has entered block. Answer by 13.
5--Block is not clear.
7--Train following.
8--Opening block station. Answer by Nos. of trains in the extended block with time each train entered the block.
9--Closing block station. Answer by "13" after receiving transfer of the records of trains which are in the extended block.
13--I understand.
71--Train following, display Stop-Signal. Answer by S D.

317. To be used for single track opposing and following movement.

To admit a train to a, block the Signalman must examine the block record, and if the block is clear, will give "1 for (No. 1)" to the next block station in advance. The Signalman receiving this signal, if the block is clear, must display the Stop-signal to opposing trains and reply "S D for (No. 1)." If the block is not clear, he must reply "5 of (No. 3)." The Signalman at the entrance of the block must then display the proper signal indication to the train to be admitted.

A train must not be admitted to a block which is occupied by a passenger train, except as provided in Rule 331 or by special order.

To permit a train to follow a freight train into a block, the Signalman must give "71 for (No. 5)" to the next block station in advance, to which the reply "5 of (No. 95), S D for (No. 5)" must be made. The approaching train will then be admitted to the block under a caution signal.

318. (a). To be used for absolute block for following movements only.

To admit a train to a block the Signalman must examine the block record, and if the block is clear, will display the proper signal indication to the train to be admitted, reporting its movement as per Rule 319.

A train must not be admitted to a block unless it is clear, except as provided in Rule 331 or by special order.

318 (b). For permissive block for following movements only.

To admit a train to a block the Signalman must examine the block record, and if the block is clear, will display the proper signal indication to the train to be admitted, reporting its movement as per Rule 319.

A train must not be admitted to a block which is occupied by a passenger train, except as provided in Rule 331, or by special order.

A train may be permitted to follow a freight train into a block under a Caution-signal.

319. When a train enters a block the Signalman must report the train, and the time, to the next block station in advance, and when the train has passed the home block signal and the Signalman has seen the markers he must display the Stop-signal, and when the rear of the train has passed 200 feet beyond the home block signal he must report the train and the time to the next block station in the rear.

320. Unless otherwise provided, Signalmen must not give "1" or "3" until they have received "4" from the block station in the rear.

321. Signalmen must observe all passing trains and note whether they are complete and in order, and the markers properly displayed. Should there be any indication of conditions endangering the train, or a train on another track, the Signalman must notify the Signalman at the next block station in advance. A Signalman having received this notice must display Stop-signals in both directions and answer "S D." Should a train going in the opposite direction be stopped it may be permitted to proceed when it is known that the track on which it is running is not obstructed.

322. Should a train pass a block station without markers, the Signalman must notify the Signalman at the next block station in each direction, and must not report that train clear of the block until he has ascertained that the train is complete.

323. Should a train pass a block station in two or more parts, the Signalman must notify the Signalmen at the next block station in advance. A Signalman having received this notice must stop any train running in the opposite direction. The Stop-signal must not be displayed to the Engineman of the divided train if the block in advance is clear, but the Train-parted signal must be given. Should a train going in the opposite direction be stopped, it may be permitted to proceed when it is known that its track is not obstructed.

324. A Signalman informed of any obstruction in a block must display the Stop-signal and notify the Signalman at the other end of that block. The Signalman at the other end of the block must immediately display the Stop-signal. The Clear-signal for that block must not be displayed until the obstruction is removed.

325. When a train takes a siding the Signalman must know that it is clear of the block before reporting the block clear or displaying a Clear-signal for that block.

The Signalman must obtain control of the block before permitting a train on a siding to re-enter the block.

326. To permit a train to cross-over or return the Signalman must examine the block record, and if all the blocks affected are clear of approaching trains he will arrange with the Signalman at the next block station on either side to protect the movement, and when the proper signals have been displayed permission may be given. Until the block is clear no train must be admitted in the direction of the cross-over switches except under Caution-signal.

327. When, as provided for in Rule 364, coupled trains have been separated, the Signalman must regard each portion as an independent train.

328. If necessary to stop a train for which a Clear-signal (or Caution-signal) has been displayed and accepted the Signalman will give hand signals in addition to displaying the Stop-signal.

329. A Signalman having orders for a train must display the block signal at "Stop" in addition to the proper signal for train orders. He may permit trains so stopped to proceed under block signal rules after complying with Rules for Movement by Train Orders.

330. If from the failure of block signal apparatus the block signal cannot be changed from the normal indication, a Signalman having information from the Signalman at the next block station in advance, that the block is clear, may admit a train to the block by the use of Clearance Card (Form C).

331. If from the failure of telegraph line or other cause, a Signalman be unable to communicate with the next block station in advance, he must stop every train approaching in that direction. Should no cause for detaining the train be known, it may then be permitted to proceed, with a Caution Signal or a Caution Card (Form D).

332. Signalmen must have the proper appliances for hand Signaling ready for immediate use. Hand signals must not be used when the proper indication can be given by the fixed signals. When hand signals are necessary they must be given from such a point and in such a way that there can be no misunderstanding on the part of Enginemen or Trainmen as to the signals, or as to the train or engine for which they are given.

333. Signalmen will be held responsible for the care of the block station, lamps and supplies; and of the signal apparatus unless provided for otherwise.

334. Lights in block stations must be so placed that they cannot be seen from approaching trains.

335. Lights must be used upon all block signals from sunset to sunrise and whenever the signal indications cannot be clearly seen without them.

336. If a tram over-runs a Stop-signal, the fact, with the number of the train, must be reported to the Chief Dispatcher.

337. If a Stop-signal is disregarded, the fact, with the number of train, must be reported to the next block station in advance and then to the Chief Dispatcher.

338. To open a block station the Signal man must give "8" to the next block station in each direction and record the trains that are in the extended block. He must then display the normal signal indication and notify the block station in each direction that the station is open.

When trains, which were in the extended block when the station was opened, and which had passed his station before it was opened, clear the block in advance he must repeat the record to the block station in the rear.

He must not display the Clear-signal until all trains are clear of the block in advance.

339. A block station must not he closed except upon authority of the Chief Dispatcher; nor when trains are approaching which are to meet or pass at that block station.

340. To close a block station the Signalman must first obtain "2" for trains which he has admitted to the blocks in each direction.

He must give "9" to the next block station in each direction and transfer the records of the trains in the extended block. He must then enter on his block record "13" with the time it is received from each block station.

The block signals must then be secured in the "clear" position, all lights extinguished and the block wires arranged to work through the closed station.

361. Block signals apply only to trains running in the established direction.

362. Trains must not pass a Stop-signal without receiving a Caution Card (Form B or Form D), a Clearance Card (Form C) or a special order.

364. Unless directed by special instructions, when two or more trains have been coupled and so run past any block station, they must be uncoupled only at a block station and the Signalman notified.

365. When a train takes a siding it must not again enter the block without the permission of the Signalman.

366. When it is necessary for a train to cross-over, the Conductor, before crossing or returning, must notify the Signalman and obtain permission to do so.

367. Enginemen and Trainmen must not accept clear hand signals as against block signals.

368. The Engineman of a train which has parted must sound the whistle signal for Train-parted on approaching a block station.

369. An Engineman receiving a Train-parted signal from a Signalman must answer by the whistle signal for Train-parted.

370. When a parted train has been recoupled the Signalman must be notified.

371. At a block station where the Signalman is absent or incapacitated, so that instructions cannot be obtained, trains must wait 10 minutes and then proceed with caution to the next block station, where the Conductor must report accordingly to the Chief Dispatcher.

372. If the track is obstructed between block stations notice must be given to the nearest block Signalman.

373. If a train is held by a block signal to exceed two minutes, the Conductor must ascertain the cause.

374. Conductors must report to the Chief Dispatcher any unusual detention at block stations.

375. A block station must not be considered as closed, except as provided on Time-table or by special instructions.

601.

Where the semaphore is used, the governing arm is displayed to the right of the signal mast as seen from an approaching train, and the indications are given by positions:

Horizontal as the equivalent of Stop.
Vertical as the equivalent of Proceed.

Where the semaphore is used, the governing arm is displayed to the right of the signal mast as seen from an approaching train and the indications are given by positions:

Horizontal as the equivalent of Caution.
Vertical as the equivalent of Proceed.

602. Interlocking signals, unless otherwise provided, do not affect the movements of trains under the Time-table or train rules; nor dispense with the use or the observance of other signals whenever and wherever they may be required.

661. Trains or engines must be run to but not beyond a signal indicating stop.

662. If a clear-signal, after being accepted, is changed to a stop-signal before it is reached, stop must be made at once. Such occurrence must be reported to the Chief Dispatcher.

663. Enginemen and Trainmen must not accept clear hand signals as against fixed signals until they are fully informed of the situation and know that they are protected. Where fixed signals are in operation Train-men must not give clear hand signals against them.

664. The Engineman of a train which has parted must sound the whistle signal for Train-parted on approaching an interlocking station.

665. An Engineman receiving a Train-parted signal from a Signalman must answer by the whistle signal for Train-parted.

666. When a parted train has been recoupled the Signalman must be notified.

667. Sand must not be used over movable parts of an interlocking plant.

668. Any unusual detention at interlocking plants must be reported to the Chief Dispatcher.

669. Trains or engines stopped in making a movement through an interlocking plant, must not move in either direction until they have received the proper signal from the Signalman.

671. Each signal will be placed, wherever practicable, on the right hand side of the track it governs, except where a bridge is used, when it will be placed over the right hand rail.

672. High semaphore signals will be used to govern running tracks in their right direction.

673. Dwarf signals may be used to govern running tracks in their right direction at terminal points. They will be used to govern running tracks in reverse direction and all other tracks in either direction.

674. When two or more arms are used on high home interlock signal posts the top arm will govern the main or high speed route, the others to govern diverging and low speed routes.