The exact same gap on board — a missing chart correction, a torn publication, a critical spare with no requisition — can be recorded as an Observation, a Non-Conformity, or a Major Non-Conformity, depending entirely on how it's classified. Get that classification wrong, in either direction, and either a serious risk goes unaddressed or a minor gap gets treated like a crisis. This lesson is about how the classification actually works.
What You'll Learn in This Lesson
- The ISM Code's precise definitions of Observation, Non-Conformity, and Major Non-Conformity
- The decision logic auditors actually use to classify a finding
- The full corrective action lifecycle, from detection to close-out
- How to tell a root cause from a symptom, using the 5 Whys method
- What separates internal audits from external ones — covered in full in Lesson 5
The Three Classification Tiers, Defined
The ISM Code defines all three terms precisely, and the wording matters — it's what an auditor is actually applying, not a rough judgement call:
| Tier | ISM Code Definition | Consequence |
|---|---|---|
| Observation | A statement of fact made during a safety management audit, substantiated by objective evidence | No immediate action required — but left unaddressed, it can develop into a Non-Conformity |
| Non-Conformity | An observed situation where objective evidence indicates the non-fulfilment of a specified requirement | Requires a documented corrective action, tracked to close-out |
| Major Non-Conformity | An identifiable deviation posing a serious threat to personnel or ship safety, or serious environmental risk, requiring immediate corrective action — including a lack of effective, systematic implementation of an ISM requirement | A DOC or SMC cannot be issued while a Major NC remains open |
Notice that an Observation isn't inherently negative — it's simply a documented fact. Many Observations describe something that currently still meets the requirement, but is trending toward a gap if nothing changes.
A Real Example: Same Ship, Three Possible Findings
Consider critical spares. The SMS requires a minimum inventory of spares to be maintained at all times, with a requisition raised the moment stock drops.
- Observation: A chart is found torn at the edge and taped — still usable and correctable, but worth noting before it becomes a bigger problem.
- Non-Conformity: Two critical spares are missing with no requisition raised — the SMS requirement to maintain minimum inventory has not been fulfilled.
- Major Non-Conformity: The vessel is found sailing below its safe manning document level without an approved exemption — a serious, direct threat to safety that demands immediate correction.
How Auditors Classify a Finding
This is the same logic behind SIRE 2.0's own observation ratings, covered in the SIRE 2.0 Learning Path — different regime, same underlying principle: classify by severity and by whether a specific, documented requirement was actually breached, not by gut feeling about how "bad" something looks.
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Finding Classification Exercise
Classify each scenario below, then check your answers.
1. A fire extinguisher's inspection tag shows it's two weeks overdue for its annual service, but it was tested and found functional the previous month.
2. A crew member demonstrates correct PPE use during the audit, but the auditor notices the PPE storage locker is slightly disorganised.
3. The vessel is operating with two fewer crew than its safe manning document requires, with no exemption on file.
4. Permit-to-work forms exist for all hot work in the last month, but two are missing the reviewing officer's signature.
5. The auditor notes that the engine room is well-organised, but suggests relabelling two valves for clarity as good practice.
The Corrective Action Lifecycle
A finding is detected — during an audit, an inspection, or day-to-day operation. Its root cause is investigated, not just its symptom. A Corrective and Preventive Action (CAPA) is defined and implemented. The fix is verified as actually working, not just completed on paper. Only then is the finding formally closed out. Skipping straight from detection to close-out — fixing the symptom without investigating the cause — is exactly how the same finding ends up recurring at the next audit.
Root Cause vs Symptom: The 5 Whys Method
A worked example, using a missing critical spare as the starting symptom:
Each "why" moves one level deeper: the spare is missing because no requisition was raised; no requisition was raised because the crew member didn't know the process; they didn't know because it wasn't covered at onboarding; and that's traceable to a gap in the onboarding checklist itself — the actual root cause. The corrective action that follows should target the onboarding checklist, not just "remind the crew member" — a fix aimed only at the symptom leaves the same gap open for the next new joiner.
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Frequently Asked Questions
What's the key difference between an Observation and a Non-Conformity?
An Observation is a documented fact that doesn't yet breach a specific requirement; a Non-Conformity means objective evidence shows a specific SMS or ISM Code requirement was not fulfilled.
Can a company still get its DOC renewed with an open Major Non-Conformity?
No — a DOC or SMC cannot be issued while a Major Non-Conformity remains open.
Is an Observation always a bad sign?
No — an Observation is simply a statement of fact substantiated by evidence; it may describe something that still meets requirements but could develop into a gap if left unaddressed.
What's the risk of skipping root cause analysis?
Fixing only the symptom, not the underlying cause, is exactly how the same finding tends to recur at the next audit.
What's the difference between internal and external ISM audits?
Covered in full in Lesson 5 — in short, internal audits are run by the company itself, while external audits are conducted by a flag state or Recognized Organization.
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