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Exam Overview
The Safety Trained Supervisor (STS) Certification Examination is a professional credentialing exam administered by the Board of Certified Safety Professionals.
The exam validates your ability to apply safety and health principles while performing supervisory duties.
The focus is not advanced safety engineering.
The focus is practical, day-to-day safety leadership at the supervisory level.
Exam Pattern and Format
- Computer-based examination
- Multiple-choice questions
- Questions assess knowledge application, not memorization
- Scenario-based questions are common
Number of Questions and Time Limit
- Total questions: 100 multiple-choice questions
- Scored questions: All questions are scored
- Time limit: 2 hours
- No scheduled breaks during testing
You must manage time efficiently to complete all questions.
Scoring and Results
- Scoring method: Scaled score
- Pass or fail result
- No penalty for incorrect answers
- Results are typically available shortly after completion
A passing score confirms that you meet the minimum competency standard established for safety-trained supervisors.
Exam Administration
- Administered by the Board of Certified Safety Professionals
- Delivered at authorized computer-based testing centers
- Offered year-round by appointment
- Identification and exam security rules are strictly enforced
Importance of the STS Certification
The STS certification is important because it:
- Confirms your competency in workplace safety supervision
- Demonstrates commitment to safety leadership
- Supports compliance with safety expectations in regulated environments
- Strengthens credibility with employers and regulatory bodies
For many organizations, STS certification supports internal safety programs and risk reduction goals.
Why This Exam Matters for Supervisors
As a supervisor, you are expected to:
- Identify hazards before incidents occur
- Enforce safety procedures consistently
- Communicate safety expectations clearly
- Respond appropriately to emergencies
- Model ethical and compliant behavior
The STS exam measures your readiness to meet these responsibilities.
This study guide is structured to help you understand what the exam expects and how to prepare effectively.
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