ISO 45001 — Occupational Health & Safety Management System

Improvement

Incident, nonconformity, corrective action, continual improvement

Strategic context

What this element is — and why it matters

Clause 10 is the continuous-improvement engine — Cl.10.1 general principle of continual improvement, Cl.10.2 incident / nonconformity / corrective action, Cl.10.3 continual improvement. The clause closes the PDCA cycle by converting performance evaluation outputs (Cl.9) into systematic improvement actions that re-shape the OH&S MS through subsequent cycles.

Improvement

Individual significance for organisations

Cl.10 is where organisations either learn from their experience or repeat their mistakes. Sites with disciplined corrective action, robust incident investigation, and active continual improvement progressively close performance gaps. Sites where Cl.10 is weak see recurring incidents and stagnant management-system performance.

Contribution to ISO 45001 — Occupational Health & Safety Management System

Cl.10 completes the PDCA loop by consuming Cl.9 outputs (audit findings, compliance gaps, management-review decisions) and producing systematic improvements that re-shape Cl.4-8 design. It also integrates with Responsible Care Element 4 (Learning from Experience) and CCPS RBPS Element 17 (Incident Investigation) + Element 20 (Management Review & Continuous Improvement).

Key requirements

What compliant execution looks like

Continual improvement principle per Cl.10.1
Incident, nonconformity, corrective action per Cl.10.2
Investigation of incidents per Cl.10.2 — root cause analysis
Corrective action eliminating cause and preventing recurrence
Continual improvement of OH&S MS per Cl.10.3 — suitability, adequacy, effectiveness
Integration with ISO 14001 / 9001 / 50001 improvement systems via Annex SL
Implementation methodology

How we implement this element

A focused 6-step methodology calibrated to deliver improvement as a working capability — not a documented compliance artefact.

Continual Improvement Framework

Per Cl.10.1, establish principle and intent of continual improvement — suitability, adequacy, effectiveness of OH&S MS; integrate with PDCA cycle and corporate strategy.

Incident & Nonconformity per Cl.10.2

Define triggers for incident and nonconformity; align with OSHA PSM (m) / CCPS Investigation Guidelines / IEC 62740; specify investigation depth per severity.

Root Cause Analysis

Multi-method RCA — TapRoot, Apollo, Causal Tree, ECFC, MORT per complexity; reach latent / organisational causes; apply just-culture per James Reason.

Corrective Action Design

Per hierarchy of controls; verify effectiveness; update risks / opportunities per Cl.6; revise OH&S MS as required; document via Cl.7.5 documented information.

Continual Improvement Cycle

Per Cl.10.3, drive continual improvement of OH&S MS — set improvement targets, monitor progress, integrate with management review per Cl.9.3 and corporate strategy.

Cross-System Integration

Integrate improvement actions across ISO 45001, ISO 14001, ISO 9001, ISO 50001 management systems via Annex SL; eliminate duplicate improvement programmes.

Implementation flow

Element-implementation flow chart

Decision-gated workflow showing the actual sequence of activities — from initiation through steady-state operation — with key decision points highlighted.

Start
Cl.9 performance evaluation outputs received
Decision
Incident or Nonconformity?
Decision gate per Cl.10.2 trigger
Investigation Initiation
Per CCPS / OSHA PSM (m) — 48-hour, evidence preserved
Root Cause Analysis
TapRoot / Apollo / Causal Tree / ECFC per complexity
Causal Chain — Latent Causes
Physical → immediate → latent → organisational
Just-Culture Application
Substitution test + proportionate response
Corrective Action per Hierarchy
Elimination → substitution → engineering → admin → PPE
Decision
Action Effectiveness Verified?
Decision gate
OH&S MS Updated
Risks / opportunities / procedures / controls revised
Continual Improvement per Cl.10.3
Target setting + progress monitoring + integration
Deliverables

What we produce

  • Continual improvement framework per Cl.10.1
  • Incident + nonconformity procedure per Cl.10.2
  • RCA methodology selection guidance
  • Corrective action tracking database with effectiveness verification
  • OH&S MS revision procedure
  • Cross-system integration map (ISO 45001 / 14001 / 9001 / 50001)
Common pitfalls

Where execution fails

  • RCA stopping at operator error
  • Corrective actions filed but never closed
  • Effectiveness verification skipped
  • Improvement programme fragmented across multiple ISO standards
Related elements

Explore related elements in this framework

All elements in this framework

ISO 45001 — Occupational Health & Safety Management System — full element index

Implement this element

Talk to us about implementing Improvement

We can scope this element implementation against your facility, regulatory context, and existing management-system maturity — and integrate it with the other ISO 45001 — Occupational Health & Safety Management System elements you already operate.