STS® Practice Test

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Free STS Practice Test (updated 2026) STS Certification Review

The Board of Certified Safety Professionals (BCSP) administers the Safety Trained Supervisor (STS®) certification exam for organization leaders to help ensure safer and healthier workplaces.

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Eligibility

To be eligible for the exam, you must have at least 30 hours of safety, health, and environmental training. You must also meet at least ONE of the following requirements:

  • Have at least two years of supervisory experience.
  • Have at least four years of work experience at a minimum of 18 hours per week in any industry.
  • Have at least an associate degree in occupational safety, construction management, or risk management.
  • Complete a two-year union or trade training program or apprenticeship.

STS Exam Outline

The STS exam contains 100 multiple-choice questions and has a time limit of 2 hours.

The exam is split into six content domains:

A chart titled "STS Exam Outline" lists six exam content domains with percentages and includes a pie chart, time limit, total questions, format, and delivery details at the bottom.

1. Safety Program Implementation and Management (15%)

The questions in this domain evaluate the following:

  • Essential elements of new employee orientation training
  • Incident investigation and reporting
  • Elements of a job safety analysis
  • Observing workers’ fitness for duty

2. Hazard Awareness (20%)

The questions in this domain evaluate the following:

  • Safety inspection procedures and corrections
  • Identifying hazards based on documentation
  • Motor vehicle safety precautions
  • Safety audits
  • Stop work authority (SWA)

3. Hazard Controls (20%)

The questions in this domain evaluate the following:

  • Hierarchy of controls
  • Mitigating or reducing hazards
  • Machine safeguarding
  • Conducting continuous improvement processes for a JSA
  • Risk assessment and management

4. Basic Industrial Hygiene (12%)

The questions in this domain evaluate the following:

  • Identifying hazards related to various issues
  • Identifying chemical routes of entry into the body
  • Hazardous atmospheres

5. Emergency Preparedness and Management (11%)

The questions in this domain evaluate the following:

  • Routine emergency equipment inspections
  • Equipment emergency shutoff procedures
  • Items included in an emergency response plan

6. Life Critical Activities (22%)

The questions in this domain evaluate the following:

  • Identifying electronic hazards
  • Identifying fall hazards
  • Identifying confined spaces hazards
  • Ladder safety protocols
  • Isolation of hazardous energy
  • Risks associate with hoisting and rigging
  • Fire protection systems

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Registration

To register for the STS exam, you must first create an online BCSP account. Through your account, you can then select “STS” as your certification of choice and fill out the application. You will be asked to provide your contact information, proof of your BSCP-qualified credential, and your experience and education information.

Once the application is filled out, you will need to submit it along with the $120 application fee.

Once your application is approved, you will have a full year from the date of approval to register and sit for the exam. During registration, you will need to pay the $185 examination fee. You can schedule your exam at any time with Pearson VUE.

Test Day

You should arrive at the Pearson VUE testing center 15-30 minutes before the exam is scheduled to begin. Once you arrive, you must sign in and present your photo ID to the proctor. You will be photographed and asked to sign a roster and other rule forms.

Personal items are not allowed in the testing room, so they should be left at home or in your car. This includes all electrical devices, bags, books, notes, wallets, hats, and accessories.

Just before the exam starts, you will be given a brief tutorial on the testing system. You will also be given everything you need to work out any calculations by hand (no calculator will be provided).

How the Test is Scored

BCSP uses the modified-Angoff method and the Bookmark Standard Setting method to establish the scores for the STS exam. These methods are used to ensure that your score is based entirely on your testing performance and does not rely on how well other test-takers performed.

You will get your results immediately after completing the exam. As long as you achieve the minimum cumulative score for the entire test, you will have passed, even if you did not pass all six domains individually.

Even though you don’t need to pass each individual domain, your score report will show you how you performed on each one. This is useful for understanding your strengths and weaknesses, especially if you did not pass and need to retake the exam. Currently, the minimum passing score is 70%.

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FAQs

Q

How many questions are on the STS exam?

A

There are 100 multiple-choice questions on the exam.

Q

How long is the STS exam?

A

The time limit for the exam is 2 hours.

Q

What is the passing score for the STS exam?

A

To pass the exam, you must answer at least 70% of the questions correctly.

Q

How much does the STS exam cost?

A

The examination fee is $185.

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Edited by Aaron Lanni

Aaron is the content manager and lead editor for Mometrix Academy. He regularly produces, updates, proofreads, and edits content to ensure it meets Mometrix’s quality and accessibility standards.

STS is a registered trademark of Board of Certified Safety Professionals, Inc., which is not affiliated with Mometrix Test Preparation and does not endorse this page.

 

by Mometrix Test Preparation | Last Updated: March 25, 2026