The Construction Health and Safety Technician (CHST) is a nationally recognized credential issued by the Board of Certified Safety Professionals (BCSP). It is designed for safety and health professionals who work at the technician level in the construction industry, demonstrating competency in recognizing, evaluating, and controlling construction-site hazards.
Unlike many certifications that require a four-year degree, the CHST is built around hands-on experience, making it accessible to safety coordinators, foremen, and field supervisors who have developed their expertise on the job. Earning the CHST signals to employers that you have a verified, measurable knowledge base in construction safety — backed by one of the most respected credentialing bodies in the profession.
If you want to put your preparation to the test right now, explore our CHST certification exam practice questions before diving deeper into the guide.
The CHST is the entry-level professional safety credential for construction. It is most valuable for:
Many construction companies now require or strongly prefer the CHST when hiring safety personnel — particularly on federally funded or large commercial projects where demonstrable credentials are part of contract compliance. If you are aiming for a long-term career in construction safety, the CHST is the standard first step before pursuing the Certified Safety Professional (CSP).
Board of Certified Safety Professionals (BCSP) — the gold standard for safety credentials in North America.
4 hours to answer 200 scored questions plus 25 unscored pretest items at a PSI test center.
Scaled score of 700 on a 1,000-point scale — equivalent to roughly 70% correct on scored questions.
Every 5 years with 30 continuing education credits (CEUs) to keep the credential active.
The CHST is experience-based — there is no degree requirement. To qualify, candidates must meet all of the following:
Experience is documented and verified when you submit your application through the BCSP portal. Part-time experience is prorated — two years at 20 hours per week counts as one year. Supervisory safety work, safety inspections, training delivery, and hazard analysis all qualify, provided the primary focus is prevention.
Once BCSP approves your application, you have one year to schedule and pass the exam. For actionable CHST certification tips on how to document your experience effectively, review our dedicated tips guide.
The CHST exam is administered by PSI Exams at testing centers nationwide. Key details:
The 25 pretest questions are randomly distributed throughout the exam and are indistinguishable from scored items — you must treat every question as if it counts. Results are reported immediately upon completion, with a pass/fail outcome and a scaled score. Candidates who do not pass may retake the exam after a 90-day waiting period.
Working through timed CHST practice questions under realistic conditions is one of the most effective ways to build the pacing and confidence needed on exam day.
The BCSP publishes an official examination blueprint that breaks the CHST into weighted content domains. Understanding this distribution helps you allocate study time proportionally:
The largest domain: safety program development, regulatory compliance (OSHA standards), recordkeeping, incident investigation, and training program management.
Fall hazard identification, guardrail systems, personal fall arrest systems, safety nets, leading edge work, and OSHA 1926 Subpart M requirements.
GFCI requirements, lockout/tagout, temporary wiring, overhead power line clearances, and OSHA 1926 Subpart K standards.
Selection, use, and limitations of head, eye, hearing, respiratory, hand, and foot protection in construction environments.
Additional domains and approximate weights:
The BCSP Candidate Handbook (available free on bcsp.org) lists the exact reference standards — primarily OSHA 29 CFR 1926 — that you should study for each domain. Pair the handbook with targeted CHST exam prep questions keyed to each domain to close knowledge gaps efficiently.
The CHST uses a scaled scoring model. The passing scaled score is 700 out of 1,000, which corresponds to approximately 70% correct on the 200 scored questions. Because questions vary in difficulty, the exact number of correct answers needed to hit 700 may fluctuate slightly across exam forms — this is normal and ensures fairness across administrations.
Exam fees (as of 2026):
Application fees, retake fees, and renewal fees are separate. Check bcsp.org for current pricing before applying.
For additional preparation strategies and common mistakes to avoid, read our 7 essential CHST certification tips — compiled from the experiences of candidates who have passed the exam.
You can also sharpen domain-specific knowledge with our CHST practice questions with video answers, which walk through the reasoning behind each correct response in detail.
Earning the CHST has a measurable effect on both marketability and compensation in the construction safety field:
Beyond pay, the CHST is often a contractual or insurance requirement on large general contractor projects, which means the credential directly expands the types of positions and projects you are eligible for.
The CHST is explicitly designed as a stepping stone to the Certified Safety Professional (CSP), BCSP's flagship credential. The CSP requires a four-year degree and more extensive experience — but CHST holders who accumulate that experience are well-positioned to transition. Many professionals earn the CHST to enter the field, then pursue the CSP as their career and education advance.
Before sitting for the full exam, use our CHST certification exam simulator to confirm you are ready — it mirrors the real exam's question style, domain distribution, and time pressure.
For a quick review of the highest-yield test topics, our CHST exam prep tips cover the seven areas where candidates most often lose points.