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Regulations last checked for updates: Apr 03, 2025
Title 49 - Transportation last revised: Mar 20, 2025
All Titles
Title 49
Chapter II
Part 236 - PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
§ 236.0 - Applicability, minimum requirements, and penalties.
Subpart A [§ 236.1 - § 236.110] - Subpart A—Rules and Instructions: All Systems
Subpart B [§ 236.201 - § 236.207] - Subpart B—Automatic Block Signal Systems
Subpart C [§ 236.301 - § 236.387] - Subpart C—Interlocking
Subpart D [§ 236.401 - § 236.476] - Subpart D—Traffic Control Systems
Subpart E [§ 236.501 - § 236.590] - Subpart E—Automatic Train Stop, Train Control and Cab Signal Systems
Subpart F [§ 236.601 - § 236.601] - Subpart F—Dragging Equipment and Slide Detectors and Other Similar Protective Devices
Subpart G [§ 236.700 - § 236.838] - Subpart G—Definitions
Subpart H [§ 236.901 - § 236.929] - Subpart H—Standards for Processor-Based Signal and Train Control Systems
Subpart I [§ 236.1001 - § 236.1049] - Subpart I—Positive Train Control Systems
Subpart 0 -
Appendix Appendix A - Appendix A to Part 236 [Reserved]
Appendix Appendix B - Appendix B to Part 236—Risk Assessment Criteria
Appendix Appendix C - Appendix C to Part 236—Safety Assurance Criteria and Processes
Appendix Appendix D - Appendix D to Part 236—Independent Review of Verification and Validation
Appendix Appendix E - Appendix E to Part 236—Human-Machine Interface (HMI) Design
Appendix Appendix F - Appendix F to Part 236—Minimum Requirements of FRA Directed Independent Third-Party Assessment of PTC System Safety Verification and Validation
authority:
49 U.S.C. 20102-20103
,
20107
,
20133
,
20141
,
20157
,
20301
,
20306
,
20501
,
20701
,
21301
,
21304
;
28 U.S.C. 2461
note; and
49 CFR 1.89
source:
33 FR 19684, Dec. 25, 1968, unless otherwise noted.
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