Court reinforces the strict requirements of a section 155 Notice under Work Health and Safety laws
The District Court of New South Wales has reinforced the strict compliance obligations that apply to notices issued under section 155 of the Work Health and Safety Act (WHS Act).
In a decision handed down on 17 April 2026, the court found that Young Mining Company Pty Ltd (YMC) failed to comply with a section 155 notice in relation to an incident in August 2021. Following the incident, the regulator issued a series of notices under section 155 of the WHS Act to YMC, including one notice containing 52 questions. YMC’s Financial Controller responded by the due date, but the regulator considered it inadequate.
The court closely analysed the responses and found that YMC had complied with some of the questions but had failed to comply with 19 of them. YMC was convicted of the section 155 offence and will be sentenced at a later date. The maximum penalty is $59,197.
Key takeaways
- A section 155 notice is not a request for cooperation, but a compulsory statutory direction that should be treated seriously and comprehensively.
- Early legal involvement and disciplined, proactive compliance are the most effective ways to avoid exposure to the risk of breach and criminal penalties.
Nature of a section 155 notice
A WHS regulator may issue a section 155 notice where it reasonably believes a person is capable of:
- giving information,
- providing documents, or
- giving evidence,
in relation to a possible contravention of the WHS Act or that will assist the regulator to monitor or enforce compliance with the WHS Act.
Armed with that belief the notice can be given to the person requiring them to do one or more of the following:
- give written information;
- produce specified documents or classes of documents; or
- attend at a stated time and place to answer questions and give evidence.
Section 155 powers are deliberately wide‑ranging. In particular:
the notice may extend to documents held outside the issuing jurisdiction or off‑site;
documents need not be confined to an incident itself or to WHS‑labelled material;
senior management and board‑level documents may be required;
confidentiality, commercial sensitivity or embarrassment do not justify non‑production; and
recipients are not entitled to narrow the scope of a notice based on their own assessment of relevance.
Unlike the situation with prohibition and improvement notices, there is no internal or external review rights that apply to a section 155 notice to have it set aside, amended or to extend time for compliance.
Reasonable excuse: narrow and evidential
Failure to comply with a section 155 notice without reasonable excuse constitutes a criminal offence.
The recipient bears the onus of adducing or pointing to evidence that suggests a real possibility that it has a reasonable excuse for failing to comply with the notice. If there is evidence suggesting a reasonable possibility of a reasonable excuse, the regulator must prove beyond reasonable doubt that the exception has no application – in other words, that the excuse is not reasonable.
The existence of a reasonable excuse depends on the circumstances of the case in the context of the compulsory information gathering purpose behind section 155. A reasonable excuse is no more or less than an excuse that would be accepted by a reasonable person.
Accepted excuses are rare. Courts have rejected excuses based on:
misunderstanding, oversight or administrative difficulty;
uncertainty about the meaning or breadth of the notice;
workload or inconvenience;
partial compliance;
internal approval or governance delays.
Claiming the privilege against self-incrimination is not a reasonable excuse as reliance on the privilege is expressly excluded under the WHS Act. However, it is reasonable to not disclose information or provide documents that are the subject of legal professional privilege.
Failure to comply is a stand-alone offence
Courts treat a failure to comply with a section 155 notice as a stand‑alone offence, even where:
no prosecution for the underlying incident is ultimately pursued; and
the failure arises from disorganisation, delay or misunderstanding rather than deliberate defiance.
The regulator is not required to remind, prompt or assist a deficient responder.
Important actions when a section 155 notice is received
When a section 155 notice is received, the recipient should:
- strictly and fully comply with each requirement of the notice;
- provide all requested information and documents within their knowledge, possession, custody or control;
- comply within the time, and in the form or manner specified;
- make genuine, proactive and reasonable efforts to locate responsive material; and
- positively establish any claimed 'reasonable excuse', with evidence.
Practical compliance checklist
The following checklist can be used when a section 155 notice is received.
| Stage | Action | Practical guidance |
|---|---|---|
| Triage | Record service details | Note exact date and time of service and the response deadline. Diarise immediately. |
| Escalate internally | Notify legal counsel and a senior decision‑maker with authority and resources. | |
| Scope | Read broadly and literally | Assume the notice is intentionally wide. Do not self‑limit by relevance or convenience. |
| Identify all obligations | Break the notice into document categories, information requests, and attendance requirements. | |
| Preserve | Preserve documents | Issue a document preservation instruction to relevant staff. Suspend routine deletion. |
| Search | Identify custodians | Include current and former staff, contractors and any third parties under your control. |
| Conduct reasonable searches | Search email systems, shared drives, hard copy files, archives, and backups where appropriate. | |
| Record search steps | Keep a written audit trail of what was searched, by whom and how. | |
| Assess excuses | Consider availability issues | If material does not exist or cannot be obtained, identify why and gather evidence. |
| Seek advice early | Do not assume an excuse is valid without legal advice. | |
| Prepare response | Ensure completeness | Check that all categories are addressed and responses are internally consistent. |
| Avoid unjustified withholding | Do not redact or withhold material unless legally justified and explained. | |
| Deadline | Comply on time | Submit by the due date. Late compliance does not cure the offence. |
| Extensions | Request extensions early if genuinely required; never assume they will be granted. | |
| Retain records | Keep copies | Retain the full response package, proof of delivery and search records. |
For businesses, this case highlights the importance of treating section 155 notices as a significant regulatory obligation requiring coordinated legal, operational and document management responses from the outset.
If you would like to discuss your obligations under the WHS Act or need support responding to a section 155 notice, please contact our expert team.
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