STS Exam Study Guide 2026–2027 | Safety Trained Supervisor Prep, BCSP STS5 Blueprint + 2 Practice Tests (200 Questions)

Prepare for the Safety Trained Supervisor (STS) examination from the Board of Certified Safety Professionals with a study guide built on the six domains of the current STS5 blueprint. Every topic is taught the way a front-line supervisor applies it in general industry — plants, warehouses, utilities and maintenance shops — with the OSHA rules, key numbers and decisions the exam tests.

Inside this guide

• Exam overview: about 100 multiple-choice questions, 2-hour time limit, STS5 domain weights, eligibility, fees, retake rules and recertification
• Safety Program Implementation and Management: new employee orientation, Job Safety Analysis, incident investigation and root cause analysis, OSHA recordkeeping and reporting, fitness for duty, toolbox talks, OSHA inspections, BCSP Code of Ethics
• Hazard Awareness: inspections and corrective action, tool inspections, Stop Work Authority, SDSs and GHS labels, NFPA 704, safety audits, motor vehicle and forklift safety
• Hazard Controls: hierarchy of controls, risk assessment and management of change, JSA continuous improvement, machine safeguarding, PPE and respirators, hazardous waste
• Basic Industrial Hygiene: routes of entry and exposure limits, hazardous atmospheres, asbestos, lead, noise, bloodborne pathogens, ergonomics and heat stress
• Emergency Preparedness and Management: emergency action plans, emergency equipment inspections, emergency shutoffs, first aid, CPR and AED
• Life Critical Activities: electrical safety, confined spaces, fall protection, lockout/tagout, ladders, fire protection systems, hoisting and rigging
• Worked calculations (noise dose, NRR derating, fall clearance, ladder angle, sling tension) and a Final Review Checklist
• 2 practice tests (100 questions each, 200 total) weighted like the STS5 blueprint, mostly workplace scenarios, with an answer key and a detailed explanation for every question
• Study schedules, frequently asked questions and test-taking strategies

Product details

• Digital PDF, instant download, US Letter size
• Print it or study on screen

This is an independent study resource and is not affiliated with or endorsed by the Board of Certified Safety Professionals (BCSP). STS® and Safety Trained Supervisor® are trademarks of BCSP.