2.2 HSG65 PDCA and ILO-OSH Guidelines

ISPON HSE Level 3 training commonly presents more than one management-system model. ISO 45001 is the modern certifiable OHSMS standard, while HSG65 and ILO-OSH 2001 supply practical PDCA teaching frameworks that appear across accredited-provider outlines—including Absolute HSE Level 3 modules that stress ILO-OSH elements. Your job as a candidate is to see the shared logic: plan thoughtfully, do the work safely, check results, and act to improve.

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HSG65: Managing for Health and Safety

HSG65 is UK HSE guidance that popularized managing health and safety through Plan-Do-Check-Act. Nigerian training still uses it because the language is clear for supervisors and maps cleanly to site routines.

Plan

Planning answers: What are we trying to achieve? What can hurt people? What does the law require? What resources and arrangements are needed?

Typical Plan outputs supervisors touch:

• Risk assessments and method statements
• Permit arrangements and isolation plans
• Training matrices and competency checks
• Emergency response arrangements
• Measurable HSE objectives for the crew or area

Weak planning shows up as last-minute improvisation, missing gas tests, or crews arriving without the right PPE or certificates.

Do

Doing means implementing the plan: organize people, communicate, provide tools and controls, and supervise work. In HSG65 terms, organizing includes roles, responsibilities, and worker involvement. Communication includes toolbox talks, shift handovers, and clear stop-work authority.

On a Nigerian drilling or construction site, “Do” is visible when the supervisor verifies controls before energizing equipment, walks the job, challenges shortcuts, and ensures contractors follow the bridging document.

Check

Checking measures performance against the plan. It includes:

A supervisor who only reacts after injuries is living in reactive monitoring. Level 3 expects balanced checking—find weak controls before harm occurs.

Act

Acting means learning and improving: revise procedures, retrain, redesign tasks, and escalate systemic issues to management review. If inspections repeatedly find missing fire extinguishers at hot-work fronts, Act is not rewriting the same warning; it is fixing supply, staging, and accountability.

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ILO-OSH 2001 Guidelines

The International Labour Organization’s Guidelines on Occupational Safety and Health Management Systems (ILO-OSH 2001) provide a national and enterprise-level model. Absolute HSE and similar Level 3 outlines often teach its core elements because they emphasize policy commitment and worker participation in language that fits professional membership expectations under ISPON.

Core ILO-OSH Elements

1. Policy — An OH&S policy expressing commitment to prevention, compliance, and continual improvement; communicated to workers.
2. Organizing — Responsibility, accountability, competence, training, documentation, communication, and worker participation/consultation.
3. Planning and implementation — Initial review, system planning, hazard prevention hierarchy, management of change, emergency preparedness, procurement, and contracting.
4. Evaluation — Performance monitoring, audits, and management review.
5. Action for improvement — Preventive and corrective action, and continual improvement.

These five elements are another PDCA packaging:

Worker Participation in ILO-OSH

ILO-OSH is explicit: workers and their representatives should be consulted and participate in OSH arrangements. For supervisors, that means safety meetings are not lectures only. Invite hazard reports, discuss practical controls, and close the loop when workers raise issues. In unionized or community-sensitive Nigerian projects, respectful participation also reduces conflict and improves reporting culture.

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Comparing ISO 45001, HSG65, and ILO-OSH

Do not waste exam time arguing which framework is “more correct.” ISPON Level 3 rewards candidates who can apply PDCA consistently: plan controls, implement them, monitor, and improve.

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Supervisor Daily Loop (Worked Example)

Plan: Night shift will excavate near buried services. Supervisor confirms drawings, locates services, sets exclusion zones, briefs excavator operator and banksman, and prepares emergency contacts.

Do: Work starts under permit; spotting continues; soil conditions monitored; unauthorized persons kept out.

Check: Mid-shift inspection finds the banksman distracted by phone use; gas detector bump test overdue for adjacent confined space support crew.

Act: Stop the unsafe spotting practice, re-brief, replace/test detector, raise a nonconformance, and update tomorrow’s pre-task checklist so the same gaps are prevented.

That single loop is HSG65 PDCA, ILO-OSH evaluation plus action for improvement, and ISO 45001 Clauses 8–10 in operational form.

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Common Exam Traps

• Treating HSG65 as a Nigerian statute — it is guidance/framework teaching, not a replacement for the Factories Act or sector regulators
• Memorizing element names without linking them to supervisor behaviors
• Confusing “Check” (measure and investigate) with “Act” (change the system)
• Assuming ILO-OSH is only for government ministries — enterprise-level application is exactly what supervisors deliver

Master the shared PDCA spine across HSG65 and ILO-OSH, then map it to ISO 45001 clause language. That triangulation is what Absolute HSE-style outlines intend and what ISPON Level 3 supervisory questions probe.