Subpart B. Subpart B—Automatic Block Signal Systems

• Standards

  • SECTION § 236.201 - Track-circuit control of signals.
  • SECTION § 236.202 - Signal governing movements over hand-operated switch.
  • SECTION § 236.203 - Hand operated crossover between main tracks; protection.
  • SECTION § 236.204 - Track signaled for movements in both directions, requirements.
  • SECTION § 236.205 - Signal control circuits; requirements.
  • SECTION § 236.206 - Battery or power supply with respect to relay; location.
  • SECTION § 236.207 - Electric lock on hand-operated switch; control.