Safety Trained Supervisor Construction (STSC)

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What is the Safety Trained Supervisor Construction (STSC)?

The Safety Trained Supervisor Construction (STSC) is a premier professional certification designed specifically for individuals who hold supervisory responsibilities on construction sites but whose primary job function is not safety. It is a credential that validates a supervisor’s competency in identifying hazards and implementing safety protocols to protect workers.

  • Official Exam Name & Acronym: Safety Trained Supervisor Construction (STSC).
  • Conducting Body/Authority: The exam is administered by the Board of Certified Safety Professionals (BCSP). Established in 1969, the BCSP is a nationally recognized non-profit corporation that sets technical and ethical standards for safety, health, and environmental (SH&E) practice.
  • Purpose of Exam: It is a Professional Certification. It serves to bridge the gap between management and labor by ensuring that those in leadership roles have the knowledge to maintain a safe work environment.
  • Geographic Validity: The STSC is recognized globally, though it is most prominently utilized and required in the United States and by international firms following OSHA-aligned safety standards. It is accredited by the American National Standards Institute (ANSI) and the National Commission for Certifying Agencies (NCCA).
  • Level of Competence: This is a Specialist/Supervisory level certification. It demonstrates that the holder has reached a level of proficiency that goes beyond basic awareness, specifically focusing on the application of safety at the “front-line” of construction.
  • Brief History: Originally part of the “Safety Trained Supervisor” (STS) suite, the BCSP split the certification into industry-specific paths (Construction and General Industry) to better address the unique hazards of the construction field. It has evolved to align with the ISO/IEC 17024 standard for personnel certification.

Who Can Take the Safety Trained Supervisor Construction (STSC)? (Eligibility Requirements)

To sit for the STSC exam, candidates must meet specific criteria involving both education/training and professional experience. The BCSP enforces these requirements to ensure that only qualified individuals hold the credential.

  • Academic/Training Requirements: Candidates must have completed 30 hours of formal safety and health training. This can be achieved through OSHA 30-Hour Construction courses or a combination of various safety training modules provided by employers or educational institutions.
  • Experience Requirements: Candidates must possess two years of experience in the construction industry. At least part of this experience must involve supervisory responsibilities (e.g., crew leader, foreman, superintendent, or manager).
  • Documentation Checklist:
    • Official transcripts or certificates proving the 30 hours of safety training.
    • Detailed work history showing 2 years of construction experience.
    • Contact information for a supervisor or HR representative to verify employment.
    • Government-issued photo ID (Driver’s License or Passport) for exam day.
    • Signed agreement to the BCSP Code of Ethics.
  • Language Proficiency Requirements: The exam is conducted in English. While there is no formal IELTS/TOEFL requirement for the certification itself, candidates must be proficient enough to understand complex safety regulations and technical terminology.
  • Age/Citizenship Restrictions: There are no specific nationality constraints. Candidates must generally be 18 years of age or older.
  • Background Check Requirements: Candidates must disclose any criminal convictions or professional disciplinary actions during the application process.

Summary of STSC Eligibility

Requirement Criteria
Work Experience 2 years in the construction industry
Safety Training 30 hours of formal safety training
Job Role Supervisory responsibilities (Front-line leaders)
Ethics Must adhere to BCSP Code of Ethics

How to Register for the Safety Trained Supervisor Construction (STSC)

Exam Schedule & Availability

The STSC exam is available on-demand. Unlike university exams, there are no fixed windows. Once your application is approved, you have a one-year authorization period to schedule and sit for the exam at your convenience.

Exam Fees (Detailed Breakdown)

Fee Type Amount (USD)
Application Fee $140.00
Examination Fee $160.00
Annual Renewal Fee $100.00
Rescheduling Fee (within 24 hours) Full Exam Fee forfeited
Rescheduling Fee (24h to 30 days) Approx. $50.00 (Paid to Pearson VUE)
Total Initial Cost $300.00

Booking Process

  1. Create an Account: Visit the BCSP website and create a profile.
  2. Submit Application: Upload your training certificates and work history. Pay the $140 application fee.
  3. Wait for Approval: BCSP typically reviews applications within 5-10 business days.
  4. Purchase the Exam: Once approved, log in and pay the $160 exam fee to receive your Authorization to Test (ATT).
  5. Schedule via Pearson VUE: Use your ATT to book a date and location through the Pearson VUE website.
  6. Confirmation: You will receive an email confirmation with the testing center address and instructions.

Test Centers & Locations

The STSC is administered through Pearson VUE professional testing centers. These are available in over 180 countries. Remote proctoring (taking the exam from home) is also available through Pearson VUE’s OnVUE system, provided you meet the technical and environment requirements.

Retake Policy

  • If you fail, you must wait six weeks before you can retake the exam.
  • You can attempt the exam up to three times within your one-year authorization period.
  • Each retake requires a new examination fee ($160).

Score Validity

The exam result does not “expire,” but the certification itself must be maintained. The STSC follows a 5-year recertification cycle. During these five years, you must earn 30 recertification points through continuing education, professional practice, or other safety-related activities.


Safety Trained Supervisor Construction (STSC) Exam Format & Structure

Exam Format

The STSC is a Computer-Based Test (CBT). It is a closed-book exam. No outside materials or calculators are allowed; an on-screen calculator is provided within the testing software.

Timing & Duration

Section Time Allotted
Tutorial (Optional) 10 Minutes
Actual Examination 2 Hours (120 Minutes)
Post-Exam Survey 5-10 Minutes
Total Seat Time Approx. 2.5 Hours

Question Count & Types

  • Total Questions: 100 Multiple Choice Questions.
  • Scored Questions: All 100 questions usually count toward your score (unlike some other BCSP exams that have unscored “pilot” questions).
  • Question Types: 100% Multiple Choice (Single best answer).

Syllabus & Content Domains

Domain Topics Covered Weightage
Hazard Identification Site inspections, recognizing physical/chemical hazards, job hazard analysis. 40%
Hazard Control Hierarchy of controls, PPE, emergency response, safety equipment usage. 35%
Health & Safety Mgmt Recordkeeping, incident investigation, training techniques, OSHA reporting. 15%
Ethics & Professionalism BCSP Code of Ethics, legal responsibilities of a supervisor. 10%

Official Reference Materials

  • BCSP STSC Blueprint: The primary document outlining every topic on the exam.
  • OSHA 29 CFR 1926: Safety and Health Regulations for Construction.
  • Accident Prevention Manual: Published by the National Safety Council (NSC).
  • BCSP ExamCore: The official interactive online training program.

How is the Safety Trained Supervisor Construction (STSC) Scored?

Passing Score

The passing score for the STSC is not a fixed percentage (like 70%). Instead, the BCSP uses a scaled scoring system. The raw score is converted to a scale ranging from 200 to 800. A scaled score of 500 is required to pass.

Scoring Mechanics

  • Negative Marking: No. There is no penalty for wrong answers. You should answer every question.
  • Partial Credit: No. Each question is either correct or incorrect.
  • Sectional Cut-offs: No. You only need to achieve an overall passing score across the entire exam.

Score Reporting

  • Result Declaration: You will receive an immediate pass/fail result at the testing center.
  • Score Report: If you fail, you receive a diagnostic report showing your performance in each domain to help you study for a retake. If you pass, you do not receive a numerical score; you simply receive a “Pass” notification.

How Difficult is the Safety Trained Supervisor Construction (STSC)?

Difficulty Assessment

The STSC is considered Moderately Challenging. It is more difficult than a standard OSHA 30 course because it requires application-level knowledge rather than just memorization. You must know how to apply regulations in real-world supervisory scenarios.

Historical Pass Rates

Metric Estimated Rate
First-time Pass Rate 72% – 76%
Overall Pass Rate 80%

Most Challenging Topics

  • Calculations: Slings/rigging math and noise exposure calculations.
  • Regulatory Nuances: Differentiating between “Should” and “Must” in OSHA standards.
  • Hierarchy of Controls: Choosing the most effective control rather than just any correct control.

STSC vs. Similar Certifications: Which One is Right for You?

Feature STSC CHST CSP OSHA 30
Conducting Body BCSP BCSP BCSP OSHA/OTI
Primary Purpose Supervisors Safety Techs Safety Managers Basic Training
Experience Req. 2 Years 3 Years 4 Years + Degree None
Total Cost ~$300 ~$460 ~$510 ~$150-$250
Difficulty Moderate High Very High Low

When to Choose STSC

Choose the STSC if you are a Foreman, Superintendent, or Project Manager. It proves you can manage a crew safely without being a dedicated “safety officer.”

When to Consider an Alternative

Consider the CHST if your career goal is to become a full-time Safety Inspector or Technician. Consider the CSP if you have a college degree and want to reach the executive level of safety management.


How to Prepare for the Safety Trained Supervisor Construction (STSC)

Recommended Study Timeline

  • Total Preparation Time: 40 to 60 hours of dedicated study.
  • Duration: 4 to 8 weeks.

Sample Study Plan

  • Week 1-2: Review the BCSP Blueprint and OSHA 1926 standards.
  • Week 3-4: Focus on Hazard Identification and Control (75% of the exam).
  • Week 5: Study Health Management and Ethics.
  • Week 6: Take at least 3 full-length practice exams.

Best Study Resources

  • BCSP ExamCore ($299): The official, most accurate prep tool.
  • SPAN Safety Workshops: Highly regarded workbooks and practice questions.
  • Pocket Prep App: Great for quick MCQ practice on your phone.

What to Expect on Safety Trained Supervisor Construction (STSC) Exam Day

  • Arrival: Arrive 30 minutes early. If you are more than 15 minutes late, you may be turned away and lose your fee.
  • Identification: Bring two forms of ID. One must be a government-issued photo ID.
  • Prohibited Items: No phones, watches, calculators, or notebooks. Lockers are provided for your belongings.
  • The Environment: You will be in a quiet room with other test-takers. You will be monitored by cameras and a proctor.

After Passing the Safety Trained Supervisor Construction (STSC)

Once you pass, you are officially an STSC credential holder. You can use the initials “STSC” after your name on business cards, resumes, and LinkedIn.

  • Career Impact: Many large-scale construction projects (especially federal or industrial) require at least one STSC-certified supervisor on-site. It often leads to salary increases of 10-15%.
  • Maintenance: You must pay an annual $100 renewal fee and submit 30 recertification points every five years to keep the credential active.

Frequently Asked Questions about the STSC

  1. Is the STSC better than OSHA 30? Yes. OSHA 30 is an attendance-based certificate; STSC is a competency-based professional certification that requires an exam and maintenance.
  2. Does the STSC expire? Yes, it must be renewed every 5 years through continuing education.
  3. Can I take the exam online? Yes, via Pearson VUE’s OnVUE remote proctoring system.
  4. What happens if I fail three times? You must wait one year from the date of your last attempt to reapply.
  5. Is there math on the exam? Yes, basic algebra and arithmetic related to safety load limits and exposure levels.
  6. Do I need a college degree? No, only a high school diploma/GED and the required experience/training.
  7. Can I use my own calculator? No, you must use the one provided on the computer screen.
  8. How much does the STSC increase salary? On average, certified supervisors earn $5,000–$10,000 more annually than non-certified peers.
  9. Is the STSC recognized outside the US? Yes, it is highly respected in the Middle East, Canada, and by international construction firms.
  10. What is the best way to study? Combining the BCSP Blueprint with a practice question bank like Pocket Prep or SPAN.

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