Why Proper Confined Space Entry Procedures Save Lives: Lessons from $600,000+ Prosecutions

Every year, Aussie workplaces face serious incidents involving confined spaces; many of which could have been prevented with proper risk assessment, atmospheric testing, and adherence to entry permit requirements. Recent prosecutions totalling over $600,000 serve as stark reminders that cutting corners on confined space safety carries devastating consequences.

The Real Cost of Confined Space Failures

Two New Zealand PCBUs recently faced combined penalties exceeding $600,000 after two workers were nearly killed by hydrogen sulphide exposure at a waste facility near Greymouth. An excavator operator fell unconscious after leaving his vehicle to clean a pump, landing face-down in contaminated leachate. When his supervisor attempted a rescue, he fell unconscious twice before managing to escape and call for help.

The supervisor developed incapacitating post-traumatic stress disorder, while the operator suffered chemical burns to his eyes, chemical pneumonitis, atrial fibrillation, and seizures. WorkSafe New Zealand’s investigation revealed a familiar pattern: dangerously high levels of toxic gas had been identified weeks earlier, but workers were never informed. No gas monitors were available on site, and the excavation work lacked proper risk assessment or planning.

This case echoes previous hydrogen sulphide prosecutions, including the record-breaking $1,012,500 fine handed to Norske Skog Paper Mills after two workers were killed and one seriously injured at their NSW facility in 2017. The company knew stagnant filtrate could generate deadly gas and odours, yet failed to inhibit hydrogen sulphide formation in tanks or provide personal gas monitors to workers entering confined space areas.

Understanding Confined Space Requirements Under Australian WHS Regulations

Under Part 4.3 of the Work Health and Safety Regulations across Australian jurisdictions, a confined space is defined as an enclosed or partially enclosed space that is not designed for continual occupancy and presents specific atmospheric or engulfment risks. These spaces are found across industries from sewers and storage tanks to silos, trenches, pits, and underground vaults.

The regulations are clear: no worker can enter a confined space without a valid entry permit, and all reasonably practicable control measures must be implemented before entry occurs. This includes atmospheric testing, continuous monitoring, isolation of services, emergency rescue procedures, and ensuring competent persons manage the entire process.

Critical Control Measures: What Your Confined Space Entry Permit Must Include

Every confined space entry requires a https://www.worksafe.wa.gov.au/publications/confined-spaces-code-practicewritten permit completed by a competent person. This isn’t bureaucratic red tape it’s your documented evidence that you’ve systematically identified hazards and implemented controls before putting workers at risk.

Your confined space entry permit template should specify the exact space being entered, list all authorised entrants by name, define the time period for the work, and detail every risk control measure based on your risk assessment. This includes isolation procedures, atmospheric testing results, ventilation requirements, emergency equipment, communication protocols, and standby person arrangements.

Atmospheric testing must occur within one hour of entry, measuring oxygen levels (which must remain between 19.5% and 23.5%), flammable gas concentrations (below 5% LEL), and toxic contaminants. If conditions change, workers evacuate immediately and testing resumes before re-entry. Continuous monitoring is mandatory when atmospheric hazards cannot be fully controlled.

Free Confined Space Resources: Entry Permit Template, Risk Assessment Checklist, and Safe Work Method Statements

Understanding your obligations is one thing having the right tools to implement them is another. HSE Direct provides practical confined space safety resources aligned with AS 2865-2009 and the Safe Work Australia Model Code of Practice for Confined Spaces.

Our confined space entry permit template follows regulatory requirements across all Australian jurisdictions, including specific provisions for NSW’s updated WHS Regulation 2025 which commenced in August 2025. The template guides you through pre-entry atmospheric testing, isolation verification, emergency response planning, and the sign-in/sign-out process that ensures accountability.

We’ve also developed confined space risk assessment checklists that help identify hazards systematically from atmospheric contamination and oxygen deficiency to engulfment risks, mechanical hazards, and the specific challenges of rescue from restricted spaces. These assessment tools consider the entire lifecycle of confined space work, from initial hazard identification through to emergency procedures.

For construction projects, our confined space SWMS (Safe Work Method Statement) template integrates seamlessly with your WHS Management Plan, documenting consultation arrangements, high-risk work controls, and rescue procedures required under the WHS Regulations.

Why Competent Persons and Proper Training Matter

The confined spaces code of practice emphasises that only competent persons can conduct risk assessments, complete entry permits, and supervise confined space entries. Competency isn’t assumed—it’s demonstrated through formal training, qualification, and experience specific to confined space hazards.

All workers involved in confined space operations require information, training, and instruction covering the nature of hazards, appropriate use of control measures, PPE selection and maintenance, permit contents, and emergency procedures. This extends beyond entrants to include standby persons, rescue team members, supervisors, and anyone involved in atmospheric testing or equipment maintenance.

Training records must be retained for at least two years, and refresher training should occur at intervals appropriate to the frequency of confined space work and any changes to procedures or equipment.

Isolation, Atmospheric Management, and Emergency Rescue: The Non-Negotiables

Before any entry occurs, all potentially hazardous services must be physically isolated. This means more than turning off a valve—it requires removing spool pieces, inserting blanking plates, or implementing double-block-and-bleed systems with lockout/tagout procedures. The goal is to eliminate any possibility that energy, materials, or contaminants can enter the space while workers are inside.

Ventilation often provides the most effective atmospheric control, using forced air (never pure oxygen) to maintain safe conditions. Where ventilation alone cannot ensure safety, continuous atmospheric monitoring throughout the work period becomes mandatory, with predetermined action levels that trigger immediate evacuation.

Emergency rescue procedures must be established and practised before work begins. The Greymouth case demonstrates why: when an emergency occurs in a confined space, seconds matter. Would-be rescuers without proper equipment and training often become additional victims. Your rescue plan must specify equipment, trained personnel, and procedures validated through regular drills—not theoretical documents gathering dust in a filing cabinet.

Download Your Confined Space Entry Permit and Risk Assessment Template

Compliance with confined space regulations protects your workers and your business. HSE Direct’s free confined space entry permit template and risk assessment checklist provide the foundation for a systematic approach to managing these high-risk activities.

Our templates are customisable to your specific workplace hazards and operational requirements, developed with reference to the Safe Work Australia Model Code of Practice, relevant Australian Standards, and current WHS Regulations across all jurisdictions.

Don’t wait for a near-miss or a visit from the regulator to get your confined space procedures right. Download our confined space entry permit template, risk assessment checklist, and guidance documents today, and ensure your workers return home safely at the end of every shift.