The two certified members disagree about whether dangerous circumstances exist. What happens?

Either may ask an inspector, who gives a written decision

The employer's member wins because management has the final say

The matter is dropped and cannot be raised again for a year

The worker's member wins because worker safety always comes first

The employer disagrees with a JHSC recommendation. What must its written response contain?

A promise to ignore the committee

What must the employer's written response include if it accepts a recommendation?

A timetable for implementing it

Nothing beyond a simple thank-you

A bill for the cost of the changes

A request for more committee members

Which list gives the four routes of entry taught in Part One?

Inhalation, absorption, ingestion and injection

Heating, cooling, mixing and storing

Walking, lifting, bending, reaching and carrying

Hearing, seeing, smelling and touching only

When must a JHSC on a construction project set up a worker trades committee?

When the project lasts three months or more and has 50 or more workers

Only when the ministry finds the main committee is not working

When the project has fewer than 20 workers and lasts under a month

Whenever a project has at least one unionized trade on the site

Which action is a worker forbidden to take under the OHSA?

Removing a required protective device without a temporary replacement

Asking the JHSC worker member a question about safety rules

Reporting a hazard to the supervisor on the very same day it is found

Wearing the protective equipment the employer has provided

Must the same JHSC member perform every workplace inspection?

No, different members may be designated

Yes, unless the employer pays the member extra for it

No, but only managers may share it

Yes, for at least three years in a row

Which skills does Part One training use to illustrate an effective investigation?

Note taking, interviews, analysis, reports and recommendations

Hiring, payroll, budgeting, marketing and customer service

Driving, welding, lifting, painting and cleaning

Accounting, legal drafting, sales and public speaking

All Ontario practice tests

JHSC Part 1 Practice Test 2026 – Free JHSC Part One Questions

Original questions written from the official Ontario handbook, with an explanation for every answer.

By the Canada Exam Prep Editorial Team · Updated October 17, 2026

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Every answer explained
Independent · not a government site

186 questions
7 practice tests

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Practice test 1 · Question 1Score 0/0

A worker will meet a client with a history of violent behaviour. What information must the employer provide?

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Certification and the internal responsibility system
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The OHSA and how the law works
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Duties of the workplace parties
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Worker rights: know, participate, refuse
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When a JHSC is required and how it runs
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JHSC powers and recommendations
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Certified members and dangerous circumstances
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Workplace violence and harassment
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Hazard recognition and categories
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Workplace inspections
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Hazard assessment and exposure limits
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Hazard control and evaluating controls
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Reporting and investigating incidents
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Colours summarize progress from your recent practice answers: red suggests more practice, yellow shows progress, and green shows stronger recent performance. Grey means fewer than 5 answers so far. These indicators do not predict official exam results.

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All JHSC Part One practice tests

7 sets of 30 questions. Each set is fixed, so you can repeat it until you score 100%.

Exam facts

Key facts: Ontario JHSC Certification Part One Evaluation

1 worker + 1 employer memberWho needs itWhere a JHSC is required, at least one worker member and one employer member must be certifiedOntario — Training for JHSC members
3 days (19.5 hours)Part One lengthMinimum three days or 19.5 hours in class, distance or hybrid; eLearning at least 13 hours, finished within 30 daysJHSC Certification Training Program Standard, s. 6
75%Pass markStandardized final evaluation; at least 75 per cent to passJHSC Certification Training Program Standard, s. 9.1
At least 1 hourEvaluation timeAt least one hour must be allotted for the final evaluationJHSC Certification Training Program Standard, s. 9.1
Not publishedNumber of questionsThe standard does not publish a question count; our mock uses 40 questions and 30 to pass (75 per cent) as a practice standardNot officially published · JHSC Certification Training Program Standard, s. 9.1
Within 12 monthsPart Two deadlinePart Two, covering at least six workplace hazards, must be completed within 12 months of Part OneJHSC Certification Training Program Standard, Appendix B
Every 3 yearsRefresherRefresher training within three years of certification and every three years afterJHSC Certification Training Program Standard, Appendix B

Free practice tests for Ontario's Joint Health and Safety Committee (JHSC) Certification Part One. Every question is original, explains the rule behind the answer and cites the section of the Occupational Health and Safety Act, the Part One program standard or other official guidance it comes from. No sign-up, no limits, and your progress stays on your device.

Important: these questions are written from the law and the ministry's published standard, not copied from any training provider's course or its final evaluation. We used the Occupational Health and Safety Act, the Chief Prevention Officer's JHSC Certification Training Program Standard (as amended July 31, 2026), the ministry's guide for health and safety committees and representatives, O. Reg. 297/13, Reg. 833, and CCOHS fact sheets on hazards and controls.

What the test covers

Topics and question bank

Every question is tagged to one topic from the official handbook. Pick a topic to drill just that area.

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Sample JHSC Part One questions

Tap a question to see the answer. The full interactive test is at the top of the page.

1A worker will meet a client with a history of violent behaviour. What information must the employer provide?
- A. Only a general reminder to be careful with every client they meet
- B. What is needed to protect the worker, and no more personal information
- C. Nothing, because the client's privacy always outweighs worker safety
- D. The client's full medical and criminal records, posted for all staff
Employers must provide information, including personal information, about a person with a history of violence the worker can expect to encounter, but must not disclose more than reasonably necessary to protect the worker.
2The two certified members disagree about whether dangerous circumstances exist. What happens?
- A. The employer's member wins because management has the final say
- B. Either may ask an inspector, who gives a written decision
- C. The matter is dropped and cannot be raised again for a year
- D. The worker's member wins because worker safety always comes first
If the certified members do not agree, either may request an inspector to investigate, and the inspector provides a written decision.
3A supervisor knows that a floor area becomes slippery when a pump leaks. What must the supervisor do?
- A. Wait for the JHSC to notice it
- B. Advise workers of the danger
- C. Keep quiet to avoid alarm
- D. Tell only the maintenance crew
Section 27(2)(a) requires a supervisor to advise a worker of any potential or actual danger to the worker's health or safety that the supervisor is aware of.
4The employer disagrees with a JHSC recommendation. What must its written response contain?
- A. A demand that members resign
- B. Nothing; silence is enough
- C. The reasons it disagrees
- D. A promise to ignore the committee
Section 9(21) requires the employer to give reasons why it disagrees with any recommendation it does not accept.
5What must the employer's written response include if it accepts a recommendation?
- A. Nothing beyond a simple thank-you
- B. A bill for the cost of the changes
- C. A timetable for implementing it
- D. A request for more committee members
The response must contain a timetable for implementing the recommendations the employer agrees with, and reasons for any it does not accept.
6Which list gives the four routes of entry taught in Part One?
- A. Heating, cooling, mixing and storing
- B. Inhalation, absorption, ingestion and injection
- C. Walking, lifting, bending, reaching and carrying
- D. Hearing, seeing, smelling and touching only
The four routes of entry are inhalation, absorption (through skin or eyes), ingestion and injection.
7When must a JHSC on a construction project set up a worker trades committee?
- A. Only when the ministry finds the main committee is not working
- B. When the project has fewer than 20 workers and lasts under a month
- C. Whenever a project has at least one unionized trade on the site
- D. When the project lasts three months or more and has 50 or more workers
A worker trades committee is required where a project JHSC is needed, unless the project is expected to last less than three months or has fewer than 50 regularly employed workers.
8Which action is a worker forbidden to take under the OHSA?
- A. Asking the JHSC worker member a question about safety rules
- B. Reporting a hazard to the supervisor on the very same day it is found
- C. Wearing the protective equipment the employer has provided
- D. Removing a required protective device without a temporary replacement
Workers must not remove or make ineffective a required protective device without providing an adequate temporary device, and must replace it as soon as the need ends.
9Must the same JHSC member perform every workplace inspection?
- A. Yes, unless the employer pays the member extra for it
- B. No, but only managers may share it
- C. Yes, for at least three years in a row
- D. No, different members may be designated
Section 9(25) says the worker members are not required to designate the same member to perform all inspections or all of a particular inspection.
10Which skills does Part One training use to illustrate an effective investigation?
- A. Note taking, interviews, analysis, reports and recommendations
- B. Hiring, payroll, budgeting, marketing and customer service
- C. Driving, welding, lifting, painting and cleaning
- D. Accounting, legal drafting, sales and public speaking
Using a case study, Part One covers information gathering such as note taking, interviewing, data analysis, report writing, and follow-up recommendations and compliance schedules.

About the test

About the Ontario JHSC Certification Part One Evaluation

Most Ontario workplaces that regularly employ 20 or more workers must have a joint health and safety committee, and at least one worker member and one employer member must be certified. Certification has two parts. Part One is the same for every workplace and covers health and safety law, the rights and duties of the workplace parties, the committee's role, and how to recognize, assess and control hazards and evaluate the controls. Part Two applies those skills to at least six hazards in your own workplace and must be completed within 12 months of Part One.

Part One is delivered by training providers approved by the Chief Prevention Officer. The program standard sets a minimum of three days, or 19.5 hours, for classroom, distance or hybrid delivery; a self-paced eLearning version must be at least 13 hours and finished within 30 days. Part One ends with a standardized final evaluation, at least one hour long, and you need at least 75 per cent to pass. The standard does not publish the number of questions, and each provider marks its own evaluation.

Our thirteen topics follow the Part One learning outcomes: certification and the internal responsibility system, the OHSA and enforcement, duties of employers, supervisors and workers, the rights to know, participate and refuse, when a committee is required and how it runs, committee powers and the 21-day employer response, certified members and work stoppages, workplace violence and harassment, hazard categories and routes of entry, workplace inspections, hazard assessment and exposure limits, hazard control, and reporting and investigating incidents.

After certification, members must take refresher training within three years and every three years after that. Since July 31, 2026, a member whose certification has lapsed may become certified again through refresher training instead of repeating Parts One and Two.

This site is independent. It is not affiliated with the Ministry of Labour, Immigration, Training and Skills Development, the Chief Prevention Officer or any approved training provider, and our practice tests do not count toward certification. Only an approved provider's Part One and Part Two programs do. Use these questions to learn the law and the RACE process well enough that the real evaluation feels familiar.

Study plan

How to prepare

1Read the free Guide for health and safety committees and representatives on ontario.ca before or during your course.
2Learn the numbers that come up again and again: 20 workers for a committee, 6 to 19 for a representative, meetings every three months, monthly inspections, 21 days for the employer's written response.
3Know the work refusal steps by heart: report, first investigation with a worker representative present, then an inspector if the worker still has reasonable grounds.
4Learn the difference between the bilateral and unilateral work stoppage procedures and the three parts of a dangerous circumstance.
5Memorize the notice times: immediately and within 48 hours for death or critical injury, four days for lost-time injuries and occupational illness.
6Practise naming the six hazard categories, the five contributing factors and the four routes of entry, and placing controls in the hierarchy.
7Take one topic test at a time and read every explanation for questions you miss. Each one names the section behind the answer.
8When you score 34 or more out of 40 on two different mock exams, you have a comfortable margin over the 75 per cent pass mark.

FAQ

JHSC Part One test questions people ask

What is the passing mark for JHSC Part One?

The Chief Prevention Officer's program standard says learners must achieve at least 75 per cent on the standardized Part One final evaluation. Our mock exams use the same 75 per cent: 30 out of 40.

How many questions are on the JHSC Part One test?

The program standard does not publish a question count; it requires a standardized evaluation acceptable to the ministry, with at least one hour allotted. Our mock exams use 40 questions as a practice standard.

How long is JHSC Part One training?

At least three days, or 19.5 hours, in a classroom, by distance learning or in a hybrid class. A self-paced eLearning version must be at least 13 hours and completed within 30 days.

Can I take JHSC Part One online?

Yes. Part One is the only part that can be taken by self-paced eLearning, from a provider that is also approved for classroom delivery. Part Two and refresher training cannot be done by eLearning.

How soon do I need to take Part Two?

Within 12 months of completing Part One. Part Two covers at least six hazards relevant to your workplace, chosen by the employer with the committee.

How long does JHSC certification last?

You must complete refresher training within three years of being certified and every three years after that. If you miss it, your certification lapses, but you can become certified again by completing refresher training.

Are these the real JHSC Part One test answers?

No. Providers do not publish their evaluations, and sharing them would be cheating. Every question here is original and written from Ontario law and the official program standard.

Is the JHSC Part One practice test available in French?

Yes. Every question is available in Canadian French with the same answers and explanations, using the French terms of the Loi sur la santé et la sécurité au travail.

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