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2026 Statistics

Key Facts: COSH SO2 Exam

40 hrs

Mandatory Training

DOLE-OSHC

Exam Questions

OSHC STO standards

70%

Passing Score

OSHC STO standards

3 years

Accreditation Validity

Rule 1030 (renewable)

₱3k-₱5.5k

Average Training Fee

Accredited STOs

100

Practice Questions Here

OpenExamPrep

The DOLE COSH Safety Officer 2 training requires 40 contact hours of instruction and a post-training exam. The exam consists of 50 multiple-choice questions with a passing score of 70%. The training fee ranges between ₱3,000 and ₱5,500 and is conducted by DOLE-accredited Safety Training Organizations (STOs). The training certificate has no expiration, but formal Safety Officer accreditation is valid for 3 years and must be renewed with continuing professional development hours.

Sample COSH SO2 Practice Questions

Try these sample questions to test your COSH SO2 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the primary legislation in the Philippines that strengthens compliance with occupational safety and health (OSH) standards and provides administrative penalties for violations?

A.Republic Act No. 11058

B.Republic Act No. 10173

C.Presidential Decree No. 442

D.Executive Order No. 307

Explanation: Republic Act No. 11058 (passed in 2018) is the landmark OSH law in the Philippines that mandates strict compliance with safety standards and imposes heavy administrative fines for non-compliance. Republic Act No. 10173 is the Data Privacy Act. Presidential Decree No. 442 is the Labor Code of the Philippines. Executive Order No. 307 created the Occupational Safety and Health Center (OSHC).

2Under Republic Act No. 11058, which entity has the primary responsibility to ensure a safe and healthy workplace for all employees by providing OSH programs, safety training, and protective equipment?

A.The employer

B.The safety officer

C.The DOLE labor inspector

D.The safety committee secretary

Explanation: Under RA 11058 Section 4, the employer has the primary responsibility to provide a safe and healthy workplace, including providing free PPE and conducting OSH training. While the safety officer facilitates OSH programs, the ultimate legal responsibility remains with the employer. Labor inspectors enforce compliance but do not manage the site, and the safety officer acts as safety committee secretary.

3Which Department of Labor and Employment (DOLE) Department Order (DO) serves as the primary guidelines governing occupational safety and health specifically in the construction industry?

A.DO No. 13, series of 1998

B.DO No. 198, series of 2018

C.DO No. 174, series of 2017

D.DO No. 18-A, series of 2011

Explanation: DO No. 13, series of 1998, is the 'Guidelines Governing Occupational Safety and Health in the Construction Industry'. It prescribes the safety program requirements, safety officer ratios, and specialized hazard controls for construction. DO 198 is the implementing rules and regulations (IRR) of RA 11058. DO 174 and DO 18-A govern contracting and subcontracting arrangements.

4Under DO No. 13-98, what document must be written by the project's safety committee, signed by the employer/contractor, and submitted to the DOLE Regional Office for approval before construction work can begin?

A.Construction Safety and Health Program (CSHP)

B.Environmental Compliance Certificate (ECC)

C.Philippine Contractors Accreditation Board (PCAB) License

D.Work Accident/Illness Report (WAIR)

Explanation: A project-specific Construction Safety and Health Program (CSHP) must be submitted to and approved by the DOLE Regional Office before construction starts. The CSHP outlines safety rules, training plans, and designated safety personnel. The ECC is issued by the DENR, the PCAB license is for contracting authorization, and the WAIR is an accident reporting form submitted after an incident.

5According to Rule 1030 of the Philippine Occupational Safety and Health Standards (OSHS), what is the minimum training requirement to qualify as a Safety Officer 2 (SO2)?

A.Completion of a mandatory 40-hour basic OSH training course (BOSH or COSH)

B.Completion of an advanced 80-hour OSH program plus 2 years of field experience

C.A bachelor's degree in engineering or architecture with no training hours

D.Completion of a 16-hour basic first aid and emergency response course

Explanation: A Safety Officer 2 (SO2) must complete a mandatory 40-hour basic OSH training course, such as BOSH (Basic Occupational Safety and Health) for general industry or COSH (Construction Occupational Safety and Health) for construction. Higher levels like SO3 require advanced training and experience, while a degree alone does not satisfy safety officer training requirements.

6Which government body under the Department of Labor and Employment is primarily responsible for inspecting workplaces, verifying safety compliance, and issuing notices of OSH violations in the Philippines?

A.Bureau of Working Conditions (BWC)

B.Occupational Safety and Health Center (OSHC)

C.Technical Education and Skills Development Authority (TESDA)

D.National Labor Relations Commission (NLRC)

Explanation: The Bureau of Working Conditions (BWC) under DOLE drafts labor standards and oversees regional inspection services to enforce OSH compliance. The OSHC focuses on research and training. TESDA is responsible for technical training and certifications, and the NLRC handles labor disputes and arbitration.

7Under RA 11058 and DO 198-18, what is the minimum worker count in a workplace classified as 'high risk' that legally triggers the requirement for at least one Safety Officer 3 (SO3)?

A.10 workers

B.50 workers

C.100 workers

D.200 workers

Explanation: Under Section 14 of DO 198-18, a high-risk establishment with 10 to 50 workers must have at least one Safety Officer 3 (SO3). For 1 to 9 workers at a high-risk establishment, a Safety Officer 2 (SO2) is required. Therefore, the threshold that triggers the mandatory deployment of an SO3 is 10 workers.

8Under the DOLE OSH Framework, what are the primary administrative functions of a Safety Officer 2 (SO2) on a construction site?

A.To assist in OSH planning, conduct hazard inspections, record safety meetings, and promote safety awareness

B.To hire, discipline, and terminate workers who fail safety inspections on the spot

C.To design structural supports, sign building permits, and manage construction budgets

D.To act as the client's legal representative in contract negotiations and project billing

Explanation: An SO2 functions as a technical advisor and coordinator on site. Responsibilities include conducting safety inspections, coordinating safety committee meetings, documenting hazards, and facilitating safety awareness. Disciplinary actions are managed by operations, structural design is for engineers, and negotiations are handled by commercial managers.

9Which Rule of the Philippine Occupational Safety and Health Standards (OSHS) governs the creation, mandatory functions, and structural composition of the Health and Safety Committee?

A.Rule 1040

B.Rule 1030

C.Rule 1020

D.Rule 1050

Explanation: Rule 1040 of the OSHS governs the Health and Safety Committee, defining its composition, roles, and meeting frequencies depending on the number of workers. Rule 1030 deals with the training and accreditation of safety personnel, Rule 1020 deals with the registration of establishments, and Rule 1050 covers OSH reporting/medical records.

10For a construction project with 300 workers, what is the classification of the safety committee under Rule 1040, and who is designated as the chairperson?

A.Type B Safety Committee, chaired by the project manager or employer

B.Type A Safety Committee, chaired by the safety officer

C.Type C Safety Committee, chaired by the company occupational nurse

D.Joint Safety Committee, chaired by the labor union representative

Explanation: Under Rule 1040.03, establishments with 200 to 400 workers must establish a Type B Safety Committee. The chairperson is the employer or project manager, and the safety officer acts as the secretary. A Type A committee is for sites with over 400 workers, a Type C committee is for 100 to 200 workers, and a Type D committee is for less than 100 workers.

About the COSH SO2 Exam

The DOLE Construction Occupational Safety and Health (COSH) training is a mandatory 40-hour course for Safety Officer 2 (SO2) accreditation in the Philippine construction industry. The course and its post-training examination validate foundational knowledge in OSH legislation (RA 11058, DO 13-98), Hazard Identification, Risk Assessment and Control (HIRAC), excavation and demolition safety, scaffold inspection, crane operations, hazard communication, electrical safety, personal protective equipment (PPE), and administrative reporting requirements (WAIR, AEDR).

Assessment

50 multiple-choice questions (administered at the end of the 40-hour training course)

Time Limit

1 hour (60 minutes)

Passing Score

70%

Exam Fee

₱3,000–₱5,500 (included in training fee) (Department of Labor and Employment (DOLE) - Occupational Safety and Health Center (OSHC))

COSH SO2 Exam Content Outline

15%

OSH Legislation & safety officer roles

Philippine OSH standards, RA 11058 compliance, DO 13-98 guidelines, and safety officer duties.

15%

Hazard Identification, Risk Assessment and Control (HIRAC)

Unsafe acts vs. unsafe conditions, risk matrix calculations, job hazard analysis, and the hierarchy of controls.

35%

Construction-Specific Safety & High-Risk Activities

Excavation/shoring, structural demolition, scaffold assembly, mobile crane lifting, and heavy equipment operation.

10%

Tools, Materials, and Chemical Safety

Hand/power tool guarding, double-insulation, manual material handling, SDS profiles, and GHS chemical labeling.

15%

Specialized Hazards & Personal Protection

GFCIs, LOTO procedures, fire chemistry (tetrhedron), PASS technique, confined space entry, and industrial hard hat classes (Class E).

10%

Administrative OSH & Occupational Health

Accident investigation root cause, WAIR/AEDR reporting timelines, medical clinic standards, and ergonomics.

How to Pass the COSH SO2 Exam

What You Need to Know

Passing score: 70%
Assessment: 50 multiple-choice questions (administered at the end of the 40-hour training course)
Time limit: 1 hour (60 minutes)
Exam fee: ₱3,000–₱5,500 (included in training fee)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

COSH SO2 Study Tips from Top Performers

1Memorize the key provisions of RA 11058 and DO 13-98, as these form the regulatory backbone of construction safety in the Philippines.

2Understand the HIRAC process and how to apply the hierarchy of controls (Elimination, Substitution, Engineering, Administrative, PPE) to site scenarios.

3Know the safety specifications for excavation: shoring is mandatory at 1.5 meters or deeper, and the spoil pile must be kept at least 1.0 meter from the trench edge.

4Study the scaffold color tag system: Green means inspected and safe, Yellow indicates special restrictions, and Red means unsafe/incomplete.

5Learn crane lifting safety: outriggers must be fully extended, load charts must be consulted, and only one signal person may direct the lift.

6Understand the GHS pictograms, chemical SDS sections, and the PASS fire extinguisher technique (Pull, Aim, Squeeze, Sweep).

7Memorize DOLE administrative deadlines: WAIR forms must be submitted within 30 days of an accident, and AEDR forms are due annually by January 30.

Frequently Asked Questions

What is the COSH training in the Philippines?

COSH (Construction Occupational Safety and Health) is a mandatory 40-hour basic training course prescribed by DOLE for safety officers working in the construction industry. It covers hazard identification, risk assessment, and specific construction safety standards to qualify participants as Safety Officer 2 (SO2).

Who is required to take the COSH course?

Under DOLE guidelines, any individual acting as a Safety Officer 2 (SO2) in construction sites, as well as construction supervisors, project engineers, and site managers, must complete the COSH course to comply with occupational safety regulations.

Is there an exam at the end of the COSH training?

Yes, DOLE-accredited Safety Training Organizations (STOs) administer a post-training examination (typically 50 multiple-choice questions) at the end of the 40-hour course. The passing score is generally 70%.

How much does the COSH training cost?

The training fee is determined by the accredited STO and usually ranges from ₱3,000 to ₱5,500 (approx. $50 to $100 USD) for online training, and slightly more for face-to-face courses. The fee covers lectures, training materials, and the final certificate.

Does the COSH certificate expire?

The COSH Certificate of Completion itself does not expire and is valid for life. However, formal DOLE OSH Practitioner accreditation (for higher-level safety officer roles) is valid for 3 years and requires renewal with continuing professional development hours.

What is the difference between BOSH and COSH?

BOSH (Basic Occupational Safety and Health) is designed for safety officers in general industries (manufacturing, offices, services), while COSH is specifically tailored for the construction industry, focusing on high-risk activities like excavation, demolition, scaffold safety, and heavy crane lifts.