Every ISO 45001 audit I've sat through eventually circles back to the same question: can top management show, with evidence, that they're actually running the safety management system — not just signing off on it? That question is clause 5.1, and it's the clause that trips up more organizations at Stage 2 than almost any other, because it asks for proof of behavior, not proof of a document.
Clause 5.1 sits inside Section 5 (Leadership and Worker Participation) of ISO 45001:2018, and it's short in the text — a single paragraph followed by ten lettered sub-requirements, 5.1(a) through 5.1(j). But those ten letters carry more audit weight than their length suggests, because they define what "top management" is personally accountable for, and auditors are trained to trace every one of them back to a specific person, a specific action, and a specific piece of evidence.
In my consulting work, I've come to think of clause 5.1 as the clause that separates a management system that exists on paper from one that actually runs the organization. Let's walk through what it requires, what auditors look for, and where I see clients stumble most often.
What Clause 5.1 Actually Requires
ISO 45001:2018 clause 5.1 opens with this obligation: "Top management shall demonstrate leadership and commitment with respect to the OH&S management system." Note the verb — demonstrate. Not "support," not "endorse," not "approve." Demonstrate. That word choice is deliberate, and it's the reason auditors ask for interview evidence and records rather than accepting a policy statement at face value.
The ten sub-clauses break down into a few functional groups:
Accountability and integration (5.1a–d). Top management must take overall accountability for preventing work-related injury and ill health, ensure the OH&S policy and objectives are established and compatible with the organization's strategic direction, and — this is the part audits catch most often — ensure the requirements of the OH&S management system are integrated into the organization's business processes. Clause 5.1(d) is not a suggestion to keep safety "in mind" during business planning. It requires safety criteria to show up in budgeting, procurement, staffing, and operational decisions the same way quality or financial criteria do.
Resourcing and communication (5.1e–f). Top management must ensure the resources needed to establish, implement, maintain, and improve the OH&S management system are available, and must communicate the importance of effective OH&S management and of conforming to the management system requirements.
Outcomes and improvement (5.1g–h). The system must achieve its intended outcomes, and top management must direct and support persons to contribute to the effectiveness of the OH&S management system, while promoting continual improvement.
Culture and structure (5.1i–j). Top management must support other relevant management roles to demonstrate leadership in their areas of responsibility, and must develop, lead, and promote a culture in the organization that supports the intended outcomes of the OH&S management system. Clause 5.1 also carries the standard's requirement to protect workers from reprisals when they report incidents, hazards, risks, or opportunities, and to support the establishment and functioning of worker participation processes covered in clause 5.4.
Why This Clause Gets Flagged So Often
Here's the pattern I see across audits: organizations write a beautiful OH&S policy, get it signed by the CEO, laminate it, hang it in the break room — and then the auditor asks the plant manager, "What did the CEO personally do this quarter to advance safety performance?" and gets silence. That silence is a nonconformity waiting to be written.
Auditors are trained under ISO 19011 guidance to seek objective evidence for leadership clauses through top management interviews, not document review alone. A policy binder proves a policy exists. It does not prove commitment. What proves commitment is a management review agenda where safety performance sits alongside revenue, a capital budget that shows OH&S line items approved by the CFO, or an executive who can describe — unprompted — the organization's top three OH&S risks.
The U.S. Bureau of Labor Statistics reported 5,283 fatal work injuries in the United States in 2023, a figure that has stayed stubbornly close to 5,000 for the better part of a decade despite decades of safety regulation — which tells you plainly that policy documents alone have never been the thing that changes outcomes. Leadership behavior is. That's the entire theory behind putting leadership in its own clause, structurally parallel to leadership clauses in ISO 9001 and ISO 14001, rather than burying it inside a general "management responsibilities" section the way older standards like OHSAS 18001 did.
Clause 5.1 Requirements at a Glance
| Sub-clause | Requirement | Evidence auditors typically request |
|---|---|---|
| 5.1(a) | Overall accountability for preventing injury/ill health | Org chart naming accountable executive; management review minutes |
| 5.1(b) | Ensure OH&S policy and objectives are established and compatible with strategic direction | Signed policy dated/reviewed; strategic planning documents referencing OH&S objectives |
| 5.1(c) | Ensure integration of OH&S requirements into business processes | Procurement checklists, project approval forms, budget line items with OH&S criteria |
| 5.1(d) | Ensure resources needed are available | Budget approvals, staffing records, training spend, equipment purchase orders |
| 5.1(e) | Communicate importance of effective OH&S management | Town halls, internal memos, toolbox talk records signed by leadership |
| 5.1(f) | Ensure the system achieves intended outcomes | Trend data on incident rates, near-miss reporting, objective tracking |
| 5.1(g) | Direct and support persons to contribute to system effectiveness | Job descriptions with OH&S duties, recognition programs, worker feedback logs |
| 5.1(h) | Ensure and promote continual improvement | CAPA logs, management review action items closed out |
| 5.1(i) | Support other managers to demonstrate leadership in their areas | Supervisor training records, cascaded safety objectives by department |
| 5.1(j) | Develop, promote, and lead a culture that supports intended outcomes | Employee survey data, stop-work authority usage, near-miss reporting rate trend |
I built this table from what auditors actually pull during Stage 2 interviews and document sampling, and it doubles as a self-audit checklist — if you can't point to evidence in the right-hand column for a given row, that's your gap before the certification body finds it for you.
Clause 5.1 vs. Clause 5.2: A Distinction Worth Holding
I get this question in nearly every gap assessment: isn't leadership commitment just the OH&S policy? No — and conflating the two is one of the most common structural mistakes I see in draft management systems. Clause 5.2 (OH&S Policy) is the artifact. Clause 5.1 is the behavior the artifact is supposed to reflect. A policy can be perfectly worded and still fail clause 5.1 if nothing in the organization's actual decision-making changed because of it.
Think of it this way: clause 5.2 asks "what does the organization say it believes about safety?" Clause 5.1 asks "what does top management actually do that proves it?" An auditor who finds a strong policy statement paired with a management review that never discusses OH&S performance will write the finding against 5.1, not 5.2 — because the policy is fine; the demonstrated commitment behind it is missing.
Who Counts as "Top Management" Under ISO 45001?
ISO 45001 defines top management as the person or group of people who directs and controls an organization at the highest level — and clause 5.1 deliberately does not let that accountability sit with a designated "safety manager" alone. That's a common misreading. Appointing a competent OH&S manager or coordinator satisfies other clauses (notably clause 5.3 on roles and responsibilities), but it does not discharge top management's own clause 5.1 obligations. I've walked into more than one organization where the CEO believed hiring a safety director was the leadership commitment requirement. It isn't. The standard is explicit that top management retains accountability even when responsibilities are delegated — delegation of tasks is not delegation of accountability.
This distinction matters most in multi-site or matrixed organizations, where it's tempting to push OH&S accountability down to site general managers and consider corporate leadership's obligation satisfied. Clause 5.1(i) actually anticipates this — it requires top management to support other relevant management roles in demonstrating leadership, which assumes a cascade, but the cascade has to start visibly at the top.
Practical Steps to Demonstrate Clause 5.1 Commitment
Based on the gaps I see repeatedly during ISO 45001 gap assessments, here's where I'd direct a leadership team's energy first:
- Put OH&S performance on every management review agenda as a standing item, not an occasional one — with real metrics (incident rate trends, near-miss reporting volume, corrective action closure time), not just "no incidents to report."
- Attach a name to clause 5.1(a). One executive should be identifiable, by title, as accountable for the OH&S management system's outcomes — documented in the org chart or a management system roles matrix, separate from the OH&S coordinator's operational role.
- Show OH&S criteria inside ordinary business processes. If capital project approvals, new supplier onboarding, or annual budgeting don't have an OH&S checkpoint, clause 5.1(c) integration isn't real yet — it's aspirational.
- Document leadership communication, not just policy communication. A toolbox talk led personally by a plant manager, a CEO video message after an audit finding, a leadership walk-through log — these are the artifacts that answer "how did top management communicate the importance of OH&S" when an auditor asks.
- Track worker participation and non-reprisal evidence separately. Clause 5.1 links directly to clause 5.4 (worker participation), and auditors frequently interview frontline workers to check whether they believe they can report a hazard without consequence. If your workers hesitate when asked that question, no policy document will save the finding.
- Budget for it, visibly. Resource allocation — training spend, PPE procurement, staffing for safety roles — should be traceable to a leadership-approved budget line, satisfying clause 5.1(d) with a paper trail rather than a verbal assurance.
Building this evidence base takes longer than writing a policy, and that's exactly the point — clause 5.1 is designed to be slow to fake and hard to backfill the week before an audit.
Common Nonconformities Tied to Clause 5.1
In gap assessments and mock audits, the recurring findings I write against this clause fall into a small number of buckets: management review records that omit OH&S performance data entirely; no documented evidence that top management reviewed or approved OH&S objectives against strategic plans; resource requests from the OH&S function that were submitted but never tracked to a leadership decision; and — the most common by far — an inability of interviewed executives to describe, in their own words, the organization's current top OH&S risks or recent incident trends. That last one is a comprehension gap, not a paperwork gap, and it's the hardest to fix quickly because it requires genuine executive engagement rather than a documentation exercise.
Frequently Asked Questions
Below are the questions I get asked most often about this clause, either during gap assessments or from clients preparing for Stage 2 audits.
Last updated: 2026-07-30
Jared Clark
Principal Consultant, Certify Consulting
Jared Clark is the founder of Certify Consulting, helping organizations achieve and maintain compliance with international standards and regulatory requirements.