Product Overview

Summary: This Contractor Prequalification Process SOP provides a clear, defensible framework for vetting contractors before they set foot on site. It helps Australian businesses verify WHS capability, competence, and compliance so only suitably qualified contractors are engaged, reducing risk to workers, projects, and the organisation.

Engaging contractors without a structured prequalification process exposes your business to significant WHS, legal and financial risk. Under Australian WHS law, a Person Conducting a Business or Undertaking (PCBU) retains a duty of care for all workers on site, including contractors and subcontractors. This Contractor Prequalification Process Safe Operating Procedure sets out a robust, repeatable method for assessing a contractor’s safety performance, insurances, licences, competencies and systems before engagement, ensuring that only those who meet your organisation’s WHS expectations are approved.

The SOP guides users through each stage of prequalification: from defining risk-based criteria and issuing prequalification questionnaires, to reviewing evidence such as SWMS, safety statistics, training records and insurances, and making documented approval decisions. It also addresses common pain points such as inconsistent assessments across projects, poor record-keeping, and difficulty demonstrating due diligence during audits or incident investigations. By implementing this procedure, organisations create a transparent, auditable process that supports safer worksites, stronger contractor relationships and compliance with Australian WHS legislation and industry best practice.

Key Benefits

• Ensure only contractors with demonstrable WHS capability, appropriate licences and valid insurances are engaged.
• Reduce the likelihood of incidents, project delays and legal exposure arising from poorly vetted contractors.
• Standardise contractor assessment across projects, sites and business units for consistent, fair decision-making.
• Streamline documentation collection and record-keeping to support audits, tenders and regulatory inspections.
• Strengthen evidence of due diligence under WHS legislation when managing contractor-related risks.

Who is this for?

• Directors and Business Owners
• WHS Managers
• HSE Advisors
• Procurement Managers
• Contract Administrators
• Project Managers
• Facilities Managers
• Site Supervisors
• Operations Managers
• Compliance and Risk Managers

Hazards Addressed

• Engagement of contractors with inadequate WHS systems or poor safety performance
• Use of unlicensed or unqualified workers for high-risk work
• Invalid, insufficient or absent insurance coverage for contractor activities
• Inadequate risk management for high-risk construction work and hazardous tasks
• Poor communication and coordination of WHS responsibilities between PCBUs
• Non-compliance with WHS legislation and Codes of Practice by contractors
• Increased likelihood of serious incidents, injuries and fatalities involving contractors

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Key Terms
• 3.0 Roles and Responsibilities (PCBU, Procurement, WHS, Project Teams)
• 4.0 Overview of Contractor Prequalification Workflow
• 5.0 Risk-Based Categorisation of Contractor Services
• 6.0 Prequalification Criteria and Minimum WHS Requirements
• 7.0 Contractor Prequalification Questionnaire and Required Documentation
• 8.0 Verification of Licences, Tickets, Training and Competency
• 9.0 Review of WHS Management Systems, SWMS and Safety Performance History
• 10.0 Insurance Requirements and Evidence Checks
• 11.0 Assessment, Scoring and Approval/Reject Decision Process
• 12.0 Communication of Outcomes and Conditions of Engagement
• 13.0 Record-Keeping, Data Management and Privacy Considerations
• 14.0 Periodic Review, Re-prequalification and Performance Monitoring
• 15.0 Managing High-Risk Contractors and Escalation Pathways
• 16.0 Interfaces with Contractor Induction and Site Access Procedures
• 17.0 Non-Conformance, Suspension and Removal from Approved Contractor List
• 18.0 Continuous Improvement and Audit of the Prequalification Process
• 19.0 References, Legislation and Related Documents
• 20.0 Document Control and Revision History

Legislation & References

• Work Health and Safety Act 2011 (Cth and corresponding state/territory Acts)
• Work Health and Safety Regulations 2011 (Cth and corresponding state/territory Regulations)
• Safe Work Australia – Model Code of Practice: Work Health and Safety Consultation, Cooperation and Coordination
• Safe Work Australia – Model Code of Practice: Construction Work
• Safe Work Australia – Model Code of Practice: How to Manage Work Health and Safety Risks
• AS/NZS ISO 45001:2018 Occupational health and safety management systems
• AS ISO 31000:2018 Risk management – Guidelines