Product Overview

Summary: This Fumigation Safety Standards Safe Operating Procedure sets out a clear, compliant framework for planning, conducting and monitoring fumigation activities in Australian workplaces. It helps businesses control toxic gas exposure, protect workers and the public, and demonstrate robust WHS due diligence when using fumigants for pest control or quarantine purposes.

Fumigation involves the controlled use of toxic gases in confined or semi-confined spaces and carries significant risks if not tightly managed. This Safe Operating Procedure provides a structured, step-by-step approach to fumigation safety, from pre-planning and risk assessment through to gas monitoring, ventilation and re‑entry clearance. It is designed specifically for Australian conditions and regulatory expectations, supporting businesses that fumigate containers, silos, grain stores, warehouses, glasshouses and other enclosed structures.

By implementing this SOP, organisations establish a consistent, defensible method for managing hazardous fumigants such as phosphine, methyl bromide (where permitted) and other registered products. The procedure addresses competency and licensing, isolation and exclusion zones, atmospheric testing, emergency response, and record-keeping so that duty holders can demonstrate compliance with WHS legislation and biosecurity requirements. It helps reduce the likelihood of acute poisoning, fire or explosion, environmental release and reputational damage, while providing workers with clear instructions and confidence in how to perform fumigation tasks safely.

This document is particularly valuable for businesses operating across multiple sites or contracting fumigation services, as it sets a common standard that can be integrated into site-specific procedures, contractor management frameworks and training programs. It supports both day-to-day operations and audit readiness, giving managers clear evidence that fumigation risks have been systematically identified, controlled and reviewed.

Key Benefits

• Ensure fumigation activities are planned and executed in line with Australian WHS and biosecurity requirements.
• Reduce the risk of toxic gas exposure, acute poisoning and long-term health effects for workers and nearby occupants.
• Standardise fumigation practices across sites, contractors and shifts, improving consistency and control of high‑risk tasks.
• Demonstrate due diligence to regulators, clients and auditors through clear documentation, permits and monitoring records.
• Improve emergency preparedness with defined response actions for gas leaks, medical incidents and uncontrolled releases.

Who is this for?

• Fumigation Technicians
• Pest Control Operators
• Quarantine and Biosecurity Officers
• Warehouse and Logistics Managers
• Grain Storage and Silo Managers
• Facilities and Property Managers
• WHS Managers and Advisors
• Operations Managers
• Site Supervisors and Team Leaders
• Agricultural and Horticultural Managers

Hazards Addressed

• Inhalation of toxic fumigant gases (e.g. phosphine, methyl bromide) leading to acute poisoning or respiratory harm
• Chemical burns and irritation to skin, eyes and mucous membranes from fumigant exposure
• Asphyxiation risks in confined or poorly ventilated spaces during fumigation or re‑entry
• Fire and explosion hazards associated with flammable fumigants or gas accumulation
• Environmental contamination from uncontrolled release or incorrect disposal of fumigants and residues
• Cross-contamination of adjacent work areas, offices or public spaces due to inadequate sealing or isolation
• Manual handling and ergonomic injuries when handling fumigant cylinders, application equipment or tarpaulins
• Slips, trips and falls around tarped areas, hoses, monitoring equipment and restricted access zones
• Vehicle and mobile plant interactions around fumigation exclusion zones in warehouses or ports

Included Sections

• 1.0 Purpose, Scope and Application
• 2.0 Definitions and Key Terms
• 3.0 Roles, Responsibilities and Competency Requirements
• 4.0 Applicable Legislation, Standards and Codes of Practice
• 5.0 Fumigation Planning and Risk Assessment
• 6.0 Site Preparation, Isolation and Exclusion Zones
• 7.0 Fumigant Selection, Handling and Storage Requirements
• 8.0 Required Plant, Equipment and Gas Monitoring Devices
• 9.0 Personal Protective Equipment (PPE) Requirements
• 10.0 Pre‑Fumigation Checks and Permit-to-Work
• 11.0 Fumigation Application Procedure (Step-by-Step)
• 12.0 Gas Monitoring, Ventilation and Re‑entry Clearance
• 13.0 Confined Space Controls (where applicable)
• 14.0 Emergency Response, First Aid and Incident Management
• 15.0 Spill, Leak and Uncontrolled Release Management
• 16.0 Waste Management and Environmental Protection
• 17.0 Contractor Management and Third‑Party Fumigation
• 18.0 Training, Induction and Competency Verification
• 19.0 Inspection, Maintenance and Calibration of Equipment
• 20.0 Record Keeping, Reporting and Audit Requirements
• 21.0 Review, Consultation and Continuous Improvement

Legislation & References

• Model Work Health and Safety Act and Regulations (as implemented in each state and territory)
• Safe Work Australia – Managing Risks of Hazardous Chemicals in the Workplace Code of Practice
• Safe Work Australia – Managing Risks of Confined Spaces Code of Practice
• Safe Work Australia – How to Manage Work Health and Safety Risks Code of Practice
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 1716: Respiratory protective devices
• AS/NZS 60079 (series): Explosive atmospheres (for flammable fumigant use and gas monitoring in hazardous areas)
• Agricultural and Veterinary Chemicals Code (Agvet Code) and APVMA requirements for fumigant use
• Relevant state/territory pesticide and fumigation licensing requirements
• Biosecurity Act 2015 (Cth) and associated directions for quarantine and import/export fumigation, where applicable