CHST Exam Guide 2026: Blueprint, Fees, and Study Plan

The Construction Health and Safety Technician (CHST) is BCSP's technician-level credential for people who perform health, safety, and environmental work on construction sites. This guide was checked against BCSP's current public materials on July 14, 2026.

Here is the practical takeaway: first confirm that your experience meets the three-year and 35% rules. Then prepare from the CHST5 blueprint, not from an unofficial list of OSHA trivia. The current exam has 200 multiple-choice items, allows four hours, and is delivered at Pearson VUE test centers. BCSP does not publish a fixed passing percentage or a universal number of correct answers.

CHST exam facts at a glance

The official BCSP CHST page should be your final check before paying. Fees and policies can change after this guide's review date.

Do you meet the CHST eligibility rules?

BCSP publishes two experience gates:

1. You need three years of construction safety, health, and environmental experience.
2. At least 35% of your duties must require technical SH&E knowledge and skills.

There is no published CHST degree, college-credit, or training-hours prerequisite. That does not make eligibility automatic. BCSP evaluates the duties and percentages in your application, not merely a job title.

Before applying, write down each employer, employment date, title, and the safety duties you actually performed. Separate technical work—such as hazard assessment, inspections, incident investigation, exposure control, training, and program implementation—from general production or supervision. Calculate a defensible safety-duty percentage for each role instead of rounding every job up to 35%.

BCSP says it randomly audits 5% of applications. If selected, an employer letter or BCSP Experience Validation Form can be used to verify employment dates, title, and duty percentage. Do not invent references or upload an unsolicited resume in place of the requested application information. For a field-by-field evidence worksheet, use our CHST eligibility and application checklist.

Current CHST fees and the one-year eligibility clock

BCSP's current fee sheet lists these CHST prices:

• Application: $140
• Examination: $300
• Application plus examination combo: $426
• Examination bundle: $550
• Application plus examination-bundle combo: $676
• Eligibility extension: $100
• Annual renewal after certification: $145

The exam bundle includes an exam authorization, an online self-assessment, and a second attempt if the first attempt is unsuccessful. Read the purchase terms before assuming a second attempt can be transferred or refunded.

After BCSP approves the application, the CHST page gives you one year to purchase, schedule, and pass the exam. The Complete Guide says a one-time, one-year extension is available during the final 60 days of the initial eligibility period for the listed extension fee. Treat those dates as hard project milestones.

A clean application-to-exam sequence is:

1. Create or sign in to your BCSP My Profile account.
2. Enter qualifying experience accurately and pay the application fee.
3. Wait for BCSP's eligibility decision and respond if documentation is requested.
4. Purchase an exam authorization or bundle.
5. Use the single-sign-on scheduling link in My Profile to choose a Pearson VUE test center and date.
6. Pass before the authorization and eligibility deadlines shown in your account.

Exam-day format and testing rules

The CHST is a closed-book computer-based test at a Pearson VUE test center. It is not a remote OnVUE exam. The current BCSP Complete Guide lists 200 multiple-choice items and four hours of examination time.

Your exam clock begins after the tutorial and candidate agreement. Breaks are self-scheduled, but the clock continues, and you must remain within the controlled test-center area. The test center supplies materials needed for calculations. BCSP's current guide describes an on-screen Texas Instruments TI-30XS calculator emulator; candidates may not bring a personal calculator.

Bring a valid, unexpired government-issued identification document that satisfies the name and photo requirements in your authorization instructions. Resolve any name mismatch with BCSP before test day. BCSP states that the result issued after you submit at the test center is official.

The public scoring documents do not support the common internet claim that every CHST form contains exactly 175 scored and 25 unscored items. BCSP says certification exams may include developmental items but does not publish a fixed CHST developmental-item count in the current candidate materials. Answer every item.

Passing score: what BCSP publishes and what it does not

BCSP does not publish a permanent CHST passing percentage such as 70%, a fixed raw score such as 140 correct, or a required score in each domain. Its scoring explanation says subject-matter experts use criterion-referenced standard-setting methods, including Modified Angoff and Bookmark procedures, and that a cut score can change when an examination is revised.

Each scored item has equal weight, and your total performance determines the result. There is no minimum score for an individual domain. That means a prep provider's estimated cutoff is not an official target.

For context only, BCSP's 2024 annual report recorded 2,578 CHST examinations and 1,593 passes, a 61.8% all-candidate pass rate. That is a historical population statistic, not a first-attempt rate, a personal probability, or evidence that the current cut score is 61.8%.

Current CHST5 blueprint and a defensible time allocation

The official CHST5 blueprint took effect August 1, 2024. Its four domains are:

The hours are a planning example, not a BCSP requirement or a prediction of the exact number of questions on your form. Keep the same proportions if your available time is different, then move additional time toward weak areas found in practice.

Domain 1: Hazard and Risk Identification and Control — 36.6%

This largest domain covers the recognition, evaluation, and control of construction hazards. The blueprint includes hazards involving electrical work, excavations, hot work, working at heights, confined spaces, cranes, vehicles, hazardous energy, chemicals, noise, silica, and material handling. It also expects familiarity with risk-assessment methods, job hazard analyses, the hierarchy of controls, monitoring instruments, and personal protective equipment.

Study this as applied decision-making. Given a task and exposure, identify the hazard, determine the best available control, and know when a competent or qualified person has a role. OSHA standards are essential references, but the blueprint also expects risk reasoning rather than recall of isolated numbers.

Domain 2: Emergency Preparedness, Incident Investigation, and Response — 19.9%

This domain covers emergency plans, incident-command concepts, first aid, crisis communication, drills, investigations, causal analysis, reporting, and corrective actions. Practice turning a scenario into a response sequence: protect people, control the scene, make required notifications, preserve useful evidence, find contributing causes, assign corrective action, and verify completion.

Do not reduce an investigation to identifying a worker's mistake. The blueprint includes organizational and operational factors, evidence gathering, interviewing, documentation, and follow-through.

Domain 3: Safety Program Development, Implementation, and Sustainment — 22.5%

Expect safety-program and site-specific-plan work: applying standards, using audits and inspections, interpreting equipment-manufacturer guidance, analyzing injury or exposure data, evaluating program effectiveness, and communicating with regulatory authorities. You should be able to connect a requirement to a work method and document how the control will be maintained.

Build practice around realistic artifacts such as an inspection finding, trend chart, written procedure, audit result, or contractor plan. Ask what the data show, who must act, how success will be measured, and what record supports the decision.

Domain 4: Leadership, Communication, and Training — 21.0%

The fourth domain addresses human behavior, leadership, training methods, communication, confidentiality, record management, risk perception, and Total Worker Health concepts. It tests whether you can select a delivery method, adapt communication to the audience, manage training documentation, and influence safe behavior without losing technical accuracy.

Know the difference between presenting information and verifying learning. A strong response chooses a suitable method for the workforce, accounts for language and literacy needs, checks comprehension or performance, and records completion.

OSHA rules worth practicing in context

No short list replaces the blueprint, but these examples show the precision CHST scenarios demand:

• Under 29 CFR 1926.501(b)(1), employees on walking/working surfaces with unprotected sides or edges six feet or more above a lower level need specified fall protection. The six-foot statement is not a universal trigger for every construction activity.
• Under 29 CFR 1926.652, employees in excavations generally need a protective system at five feet or deeper unless the excavation is entirely in stable rock. Four feet is the depth at which an excavation generally needs a safe means of egress under 1926.651(c)(2).
• Under 29 CFR 1904.39, a work-related fatality generally must be reported within eight hours. An in-patient hospitalization, amputation, or loss of an eye generally must be reported within 24 hours.
• OSHA's multi-employer citation policy distinguishes creating, exposing, correcting, and controlling employers. A single employer can occupy more than one role.

Use the standard text to resolve qualifiers and exceptions. Memorizing a number without its scope is a common way to miss an otherwise familiar question.

An eight-week CHST study plan

Use the blueprint weights to make the plan measurable:

• Week 1: Download the blueprint and official reference list, take a mixed diagnostic, and log misses by domain and task statement.
• Weeks 2–3: Work Domain 1 scenarios. Pair each missed hazard-control question with the governing standard or accepted control principle.
• Week 4: Study emergency planning and incident response. Build response sequences and practice causal-analysis questions.
• Week 5: Study program development and sustainment using audits, plans, data, and corrective-action examples.
• Week 6: Study leadership, training, communication, and record-management scenarios.
• Week 7: Mix all four domains. Rework every missed question without looking at the prior answer, and maintain an error log.
• Week 8: Complete at least two timed rehearsals, review the error log, and practice the identification, travel, break, and calculator routine for test day.

A diagnostic should change your allocation. If Domain 1 is already strong and investigations are weak, do not keep following the percentages mechanically. Weight the first plan by the blueprint and the final plan by evidence from your performance.

free CHST practice questionsPractice questions with detailed explanations

Is BCSP examCORE necessary?

No prep course is an eligibility requirement, and BCSP does not guarantee that buying examCORE will produce a passing result. The current official pages advertise a self-paced CHST examCORE course with 54 modules, about 24 hours of content, pre- and post-assessments, and access to more than 1,000 questions.

It may help candidates who want a structured official product. It is not a substitute for reading the blueprint, checking referenced standards, or practicing timed decisions. BCSP also says completing examCORE before an unsuccessful attempt can extend examination eligibility by six months; confirm the conditions in your account before relying on that benefit.

What happens if you do not pass?

BCSP requires at least six weeks between attempts, and you must still be inside your examination-eligibility period. A failed result report shows domain-level performance information. Convert that report into a new study allocation instead of restarting every topic equally.

If you purchased the exam bundle, its included second attempt applies after an unsuccessful first attempt under BCSP's terms. Otherwise, expect to purchase another exam authorization. The six-week wait does not itself extend the one-year eligibility window.

Maintaining the CHST after you pass

Certification is not permanent after one exam. BCSP currently requires CHST certificants to pay a $145 annual renewal fee and earn 20 recertification points during each five-year cycle, including the applicable ethics requirement. BCSP describes a normal cycle running from July 1 through June 30 of the fifth year, with the worksheet due by July 31.

Log qualifying activities in My Profile as you complete them and keep supporting records. Do not wait until the final month to reconstruct five years of courses, service, publications, or professional development. Use the BCSP recertification page for current categories and deadlines.

Career value without salary or SSHO myths

The CHST validates construction SH&E knowledge and experience. It is not a professional license, an OSHA authorization, or an automatic appointment to any contract role. Employer, owner, jurisdiction, and contract requirements still govern the job.

This distinction matters for federal construction. The March 2024 USACE EM 385-1-1 defines Level 1, Level 2, Level 3, and Alternate Site Safety and Health Officers. It does not define an SSHO Level 5. Holding a CHST alone does not bypass the manual's role-specific experience, training, responsibility, or contract requirements.

Salary claims need the same boundary. The Bureau of Labor Statistics classifies occupations by work performed; it does not publish a CHST pay premium. In its May 2025 national estimates, BLS reported mean annual wages of $93,860 for occupational health and safety specialists and $68,120 for technicians. These are broad SOC estimates, not predicted CHST salaries. Location, industry, scope, experience, and employer requirements affect compensation.

If you are deciding among technician, professional, and supervisory BCSP credentials, use our separate CHST vs ASP vs CSP path guide. That comparison belongs outside this exam-preparation guide because credential choice depends on your education and actual job scope.

Official sources

• BCSP CHST credential page
• BCSP Complete Guide
• BCSP CHST5 examination blueprint
• BCSP CHST examination references
• BCSP Credentials At-A-Glance
• BCSP 2024 annual report
• Pearson VUE BCSP test-center page
• OSHA construction standards
• USACE EM 385-1-1 publications page
• BLS May 2025 occupational employment and wage estimates

For informational purposes only. BCSP owns the CHST credential and sets all eligibility, examination, fee, and recertification policies. OpenExamPrep is not affiliated with or endorsed by BCSP, Pearson VUE, OSHA, USACE, or BLS.