What does GCOR stand for?

GCOR stands for the General Code of Operating Rules, a standardized rulebook governing train operations across most Class I, regional, and short line railroads in the western United States. It was first adopted in 1985 to unify operating practices and is maintained by the GCOR Committee, with the 7th edition currently in use.

How many questions are on the GCOR exam?

The GCOR certification exam typically contains 50 to 100 multiple-choice and true/false questions, though the exact count varies by railroad and job classification. Union Pacific and BNSF often use 75-question versions, while conductor and engineer exams may include additional scenario-based questions covering specific operating rules.

What is the passing score for the GCOR exam?

Most railroads require a minimum passing score of 85% on the GCOR exam, though some carriers like BNSF and Union Pacific require 90% or higher for safety-critical positions such as conductors, engineers, and dispatchers. Failing requires remedial training before a retest is permitted.

Is the GCOR exam open book or closed book?

The GCOR exam is typically administered as a closed-book test, though some railroads allow candidates to reference the rulebook for certain sections during initial certification. Recertification exams are almost always closed-book and computer-based, completed at railroad training centers or approved testing facilities.

How long do I have to complete the GCOR exam?

Candidates are generally given 90 to 120 minutes to complete the GCOR exam, depending on the railroad and the number of questions. Initial certification exams may allow up to 3 hours, while recertification tests are usually shorter at 60 to 90 minutes.

Do I need prior experience to take the GCOR exam?

No prior railroad experience is required, but candidates must complete their employer's formal training program before testing. New hires typically attend 4 to 8 weeks of classroom instruction covering GCOR rules, air brake regulations, and timetable special instructions before being eligible to sit for the exam.

How do I register for the GCOR exam?

Registration is handled directly through your employing railroad's training department, not through a public testing agency. Once you complete required coursework, your trainer or manager schedules the exam at a company testing center. The GCOR exam is not available to the general public outside railroad employment.

What study materials are recommended for the GCOR exam?

The official GCOR 7th Edition rulebook is the primary study resource, supplemented by your railroad's timetable, special instructions, and air brake rules. Practice tests, flashcards for rule numbers like Rule 6.5 (shoving movements) and Rule 5.3.1 (signal indications), and study guides from trainers help reinforce key operating concepts.

GCOR (General Code of Operating Rules) Test 2026 July

Boost your GCOR (General Code of Operating Rules) exam score 💯 with practice questions and detailed answer explanations. Track progress with instant

GCOR - General Code of Operating Rules By Dr. James ParkJul 1, 202656 min read

GCOR (General Code of Operating Rules) Test 2026 July

📝100-150Questions

⏱️VariesTime Limit

✅85%+Passing Score

💵$0Employer Paid

The GCOR is the standard rulebook used by most major U.S. railroads west of the Mississippi River, including BNSF and Union Pacific. Mastering these regulations is non-negotiable for employment and safety. Transportation and safety professionals may also benefit from our G60 torch use certification practice test.

GCOR (General Code of Operating Rules) Test - General Code of Operating Rules preparation guide

GCOR Practice Test Questions

Prepare for the GCOR - General Code of Operating Rules exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

GCOR Railroad Operations

GCOR Exam Questions covering Railroad Operations. Master GCOR Test concepts for certification prep.

GCOR Safety Rules and Procedures

Free GCOR Practice Test featuring Safety Rules and Procedures. Improve your GCOR Exam score with mock test prep.

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GCOR Mock Exam on GCOR - General Code of Operating Rules Emergency Procedures and Incident Response. GCOR Study Guide questions to pass on your first try.

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GCOR Test Prep for GCOR - General Code of Operating Rules Train Handling and Speed Restrictions. Practice GCOR Quiz questions and boost your score.

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GCOR Questions and Answers on - General Code of Operating Rules Authorities for Movement. Free GCOR practice for exam readiness.

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Free GCOR Quiz on - General Code of Operating Rules General Responsibilities and Safety. GCOR Exam prep questions with detailed explanations.

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GCOR Practice Questions for - General Code of Operating Rules Handling Switches and Derails. Build confidence for your GCOR certification exam.

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GCOR Study Material on - General Code of Operating Rules Radio and Communication Procedures. Prepare effectively with real exam-style questions.

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GCOR Exam Questions covering - General Code of Operating Rules Signals and Their Indications. Master GCOR Test concepts for certification prep.

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Free GCOR Practice Test featuring - General Code of Operating Rules Switching and Terminal Operations. Improve your GCOR Exam score with mock test prep.

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GCOR Mock Exam on - General Code of Operating Rules Track Warrant Control (TWC). GCOR Study Guide questions to pass on your first try.

GCOR Locomotive Rules and Inspection

GCOR Test Prep for Locomotive Rules and Inspection. Practice GCOR Quiz questions and boost your score.

GCOR Exam Flashcards

Flip the cards to test your knowledge of key GCOR rules and terms.

🚦What is "Restricted Speed" under GCOR rules?

A speed that allows stopping within half the range of vision, short of any train, obstruction, or switch not properly lined, and not exceeding 20 MPH.

REVIEW GCOR RULES

🔵What does a blue signal signify on a track?

It signifies that workers are on, under, or between rolling equipment and that the equipment must not be moved or coupled to.

PRACTICE GCOR SAFETY

🟨What is the main purpose of a "Track Warrant Control" (TWC)?

To authorize train movements on main tracks in non-signaled territory, providing authority limits and instructions from the train dispatcher.

⚠️What are the three points of contact that must be maintained when mounting or dismounting equipment?

Always maintaining contact with two hands and one foot, or one hand and two feet, to prevent falls and ensure stability.

REVIEW GCOR SAFETY RULES

🛑A red flag or light displayed between the rails of a track indicates what?

It indicates that the track is out of service and must not be passed. It's a stop signal that requires permission from the employee in charge to proceed.

PRACTICE GCOR SIGNALS

📅What is a "Job Briefing" according to GCOR?

A communication between crew members before starting any task to discuss the plan, potential hazards, and safety precautions.

PRACTICE GCOR RULES TEST

GCOR Study Guide

Our comprehensive GCOR Study Guide breaks down the essential rules into manageable topics. Use these tables to review key information about the GCOR test, registration, and scoring procedures to ensure you are fully prepared.

What is the GCOR?	The General Code of Operating Rules (GCOR) is a set of standardized rules for railroad operations to ensure safety and efficiency. It is used by most major railroads in the western United States.
Who needs GCOR Certification?	All employees involved in the movement of trains, including conductors, engineers, dispatchers, and yardmasters, must be GCOR certified and recertified regularly.
Which GCOR edition is current?	The GCOR 8th Edition is the most current version. However, railroads may operate under slightly different versions, so always confirm with your employer. Previous versions like the GCOR 7th Edition are still referenced.
Why is the GCOR test important?	Passing the GCOR test is a condition of employment for operational railroad roles. It demonstrates your understanding of critical safety rules required to prevent accidents and ensure smooth railroad operations.

What is the GCOR?

The General Code of Operating Rules (GCOR) is a set of standardized rules for railroad operations to ensure safety and efficiency. It is used by most major railroads in the western United States.

Who needs GCOR Certification?

All employees involved in the movement of trains, including conductors, engineers, dispatchers, and yardmasters, must be GCOR certified and recertified regularly.

Which GCOR edition is current?

The GCOR 8th Edition is the most current version. However, railroads may operate under slightly different versions, so always confirm with your employer. Previous versions like the GCOR 7th Edition are still referenced.

Why is the GCOR test important?

Passing the GCOR test is a condition of employment for operational railroad roles. It demonstrates your understanding of critical safety rules required to prevent accidents and ensure smooth railroad operations.

TAKE GCOR PRACTICE EXAM

GCOR Practice Test Score Calculator

Total Scored Questions

150

How many questions did you answer correctly?

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct✓PASS

Your primary investment is your time and commitment to studying. The railroad covers the financial costs, viewing your GCOR training as an investment in a safe and competent employee. Transportation and safety professionals may also benefit from our G60 torch use certification practice test.

Gcor Test - General Code of Operating Rules study guide

FINAL GCOR TEST REVIEW

ACCESS ALL GCOR QUESTIONS

GCOR Exam Day Checklist

✓Get a good night's sleep.
✓Eat a healthy breakfast.
✓Review key rules and definitions one last time.
✓Arrive at the training center early.
✓Bring required ID and any allowed materials.
✓Listen carefully to the instructor's directions.
✓Read every question carefully before answering.
✓Manage your time effectively.

📄Free GCOR Practice Test PDF

Ready to Pass Your GCOR Test?

Start preparing today with our free, comprehensive GCOR practice questions and study materials. Build the confidence and knowledge you need to launch your railroad career.

GCOR Renewal and Recertification

🔄

Frequency Every

2-3 Years

📚

Method Classroom

& Exam

💯

Passing Score

85% or Higher

Recertification is managed by your employer and is a mandatory part of maintaining your qualification. It ensures that every crew member is up-to-date on the latest operating rules and safety procedures.

✅Pros

+Industry-recognized credential boosts your resume
+Higher earning potential (10-20% salary increase on average)
+Demonstrates commitment to professional development
+Opens doors to advanced career opportunities

❌Cons

−Exam preparation requires significant time investment (4-8 weeks)
−Certification fees can be $100-$400+
−May require continuing education to maintain
−Some employers may not require certification

GCOR Questions and Answers

About the Author

Dr. James ParkPE, Six Sigma Black Belt, MS Industrial Engineering

Manufacturing Engineer & Quality Certification Expert

Purdue University School of Industrial Engineering

Dr. James Park is a licensed Professional Engineer and Six Sigma Black Belt with a Master of Science in Industrial Engineering from Purdue University. He has 17 years of manufacturing operations and quality management experience across automotive and aerospace industries. Dr. Park coaches manufacturing professionals through Six Sigma, Lean Manufacturing, CPIM, and quality engineering certification exams.

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