Court reinforces the strict requirements of a section 155 Notice under Work Health and Safety laws

Insights6 May 2026

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

Reasonable excuse: narrow and evidential

Failure to comply is a stand-alone offence

Important actions when a section 155 notice is received

Practical compliance checklist

The following checklist can be used when a section 155 notice is received. 

StageActionPractical guidance
TriageRecord service detailsNote exact date and time of service and the response deadline. Diarise immediately.
 Escalate internallyNotify legal counsel and a senior decision‑maker with authority and resources.
ScopeRead broadly and literallyAssume the notice is intentionally wide. Do not self‑limit by relevance or convenience. 
 Identify all obligationsBreak the notice into document categories, information requests, and attendance requirements.
PreservePreserve documentsIssue a document preservation instruction to relevant staff. Suspend routine deletion.
SearchIdentify custodiansInclude current and former staff, contractors and any third parties under your control.
 Conduct reasonable searchesSearch email systems, shared drives, hard copy files, archives, and backups where appropriate.
 Record search stepsKeep a written audit trail of what was searched, by whom and how.
Assess excusesConsider availability issuesIf material does not exist or cannot be obtained, identify why and gather evidence.
 Seek advice earlyDo not assume an excuse is valid without legal advice.
Prepare responseEnsure completenessCheck that all categories are addressed and responses are internally consistent.
 Avoid unjustified withholdingDo not redact or withhold material unless legally justified and explained.
DeadlineComply on timeSubmit by the due date. Late compliance does not cure the offence.
 ExtensionsRequest extensions early if genuinely required; never assume they will be granted.
Retain recordsKeep copiesRetain 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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