RULES AND INSTRUCTIONS
- Section 236.326 - Mechanical locking removed or disarranged; requirement for permitting train movements through interlocking
- Section 236.327 - Switch, movable-point frog or split-point derail
- Section 236.328 - Plunger of facing-point lock
- Section 236.329 - Bolt lock
- Section 236.330 - Locking dog of switch-and-lock movement
- Section 236.331-236.333 - Reserved
- Section 236.334 - Point detector
- Section 236.335 - Dogs, stops and trunnions of mechanical locking
- Section 236.336 - Locking bed
- Section 236.337 - Locking faces of mechanical locking; fit
- Section 236.338 - Mechanical locking required in accordance with locking sheet and dog chart
- Section 236.339 - Mechanical locking, maintenance requirements
- Section 236.340 - Electromechanical interlocking machine; locking between electrical and mechanical levers
- Section 236.341 - Latch shoes, rocker links, and quadrants
- Section 236.342 - Switch circuit controller