STS Practice Test 2026 — Free STS Exam Prep Questions
The STS is BCSP's credential for supervisors, team leads and managers in general industry whose safety duties sit alongside their main job. This practice set follows the six domains of the STS5 blueprint, with workplace scenarios built on OSHA general industry (29 CFR 1910) requirements, from job safety analysis and inspections to lockout, confined spaces and rigging.
Before workers enter a degreaser pit, the entry supervisor tests the atmosphere with a calibrated multi-gas meter. In what order should the atmosphere be tested?
STS format, scoring & key facts
Computer-based at Pearson test centers, purchased and scheduled through your BCSP My Profile. An on-screen calculator emulating the TI-30XS is provided (no personal calculators), plus a whiteboard and marker. No formula sheet is provided.
| Blueprint | STS5 Examination Blueprint (2026): six domains |
|---|---|
| Time | 2 hours |
| Question format | Four options, one best answer; about 12% unscored beta items |
| Calculator | On-screen TI-30XS emulator; no personal calculators |
| Formulas | No formula sheet; needed formulas appear in the question |
| Largest domain | Life Critical Activities, 22% |
| Eligibility | 30 training hours plus 2 years supervising or 4 years working |
| Fee | $120 application + $185 exam |
| Retakes | At least six weeks between attempts |
| Recertification | 3 points (30 hours) every 5 years plus annual renewal |
Facts last verified Oct 21, 2026. Source: www.bcsp.org/safety-trained-supervisor-sts. Always confirm details with BCSP before your exam.
When can you take the STS?
Once BCSP approves your application, you have one year to take and pass the exam at a Pearson test center. A one-time $100 extension is available within 60 days of the deadline.
Plan backwards from your exam date
What the STS covers
Every PrepBanq STS test mirrors the official domain weights.
Domain distribution
% of the exam| Content domain | Weight | Our practice questions |
|---|---|---|
Safety Program Implementation and Management | 15% | 23 questions → |
Hazard Awareness | 20% | 30 questions → |
Hazard Controls | 20% | 30 questions → |
Basic Industrial Hygiene | 12% | 18 questions → |
Emergency Preparedness and Management | 11% | 16 questions → |
Life Critical Activities | 22% | 33 questions → |
How to register for the STS
Eligibility
At least 30 hours of safety, health, and environmental training, plus two years of supervisory experience or four years of work experience in any industry (minimum part-time, 18 hours/week). Alternative: an associate degree or higher in occupational safety, risk management, or construction management, or a two-year trade or union training program or apprenticeship.
Retake policy
You can schedule a new attempt at least six weeks after your last attempt, within your one-year eligibility period.
Score release
Official results are available as soon as you submit the exam.
Credential renewal
Maintain the STS with an annual renewal fee and, every 5 years, 3 recertification points (30 hours) of safety and health courses or another qualifying BCSP credential, including 0.5 points from ethics courses.
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STS FAQ
How long is the STS exam?
Testing time for the STS is 2 hours.
What is the passing score for the STS?
STS passing standard: Pass/fail, with the passing score set by BCSP through a passing-score study. Score range: Pass/Fail.
How much does the STS cost?
The STS registration fee is Application $120; exam $185 (application + exam $293). Exam bundle with two attempts and a Self-Assessment $325 ($433 with application). Annual renewal $75.. Check the official site for current fees before you register.
What is on the STS?
The STS covers Safety Program Implementation and Management (about 15%), Hazard Awareness (about 20%), Hazard Controls (about 20%), Basic Industrial Hygiene (about 12%), Emergency Preparedness and Management (about 11%), Life Critical Activities (about 22%).
Who administers the STS?
The Safety Trained Supervisor (STS) Exam is administered by BCSP. Delivery: Computer-based at Pearson test centers, purchased and scheduled through your BCSP My Profile. An on-screen calculator emulating the TI-30XS is provided (no personal calculators), plus a whiteboard and marker. No formula sheet is provided.
Can you retake the STS?
You can schedule a new attempt at least six weeks after your last attempt, within your one-year eligibility period.
Is there a free STS practice test?
Yes. PrepBanq has 15 free STS practice tests with 150 exam-style questions in the real STS formats, and every answer is explained. No credit card is needed.
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