Product Overview

Summary: This SOP sets out a clear, step-by-step approval process for any modification to scaffolding on Australian worksites, ensuring changes are properly assessed, authorised and documented before work continues. It helps businesses control high-risk scaffolding activities, maintain compliance with WHS legislation, and protect workers, subcontractors and the public from preventable falls and structural failures.

Uncontrolled or informal changes to scaffolding are a major contributor to falls from height, scaffold collapses and regulatory enforcement on Australian worksites. The Scaffolding Modification Approval Safe Operating Procedure provides a robust, repeatable framework to ensure that any alteration – from moving a single bay to adding new lifts, cantilevers or access points – is properly planned, assessed and signed off by a competent person before workers are exposed to risk.

This SOP guides your team through when an approval is required, who must be involved, what technical checks must be completed, and how to document and communicate the change. It helps you manage the interface between scaffolders, site management and trades using the scaffold, reducing the likelihood of ad‑hoc, undocumented modifications. By embedding this procedure, organisations can demonstrate due diligence under WHS law, align with Australian standards for scaffolding, and provide clear evidence of control in the event of an incident, inspection or audit.

Key Benefits

• Ensure all scaffolding modifications are assessed and approved by a competent person before use.
• Reduce the risk of scaffold collapse, falls from height and structural instability caused by informal alterations.
• Standardise the modification request, review and sign‑off process across all projects and contractors.
• Demonstrate compliance with Australian WHS legislation and scaffolding standards during audits and regulator visits.
• Improve communication between scaffolders, site management and trades, minimising disruption and costly rework.

Who is this for?

• Construction Site Managers
• Principal Contractors
• Site Supervisors
• WHS Managers
• Scaffolding Supervisors
• Licensed Scaffolders
• Project Engineers
• Facilities and Maintenance Managers
• Civil Construction Supervisors
• Safety Advisors and Coordinators

Hazards Addressed

• Falls from height due to incomplete or improperly modified scaffold platforms
• Scaffold collapse or structural failure from unengineered changes
• Falling objects from unsecured components during or after modification
• Unauthorised removal of ties, braces or guardrails compromising stability
• Unsafe access and egress created by altered stairs, ladders or landings
• Overloading of platforms or bays following layout or loading changes
• Exposure to live edges during modification works
• Electrical contact hazards when scaffold is modified near overhead powerlines

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions (Modification, Competent Person, High Risk Work, PCBU)
• 3.0 Roles and Responsibilities (PCBU, Principal Contractor, Site Supervisor, Scaffolder, Workers)
• 4.0 When a Scaffolding Modification Approval is Required
• 5.0 Competency and Licensing Requirements for Approving Personnel
• 6.0 Pre‑Modification Planning and Risk Assessment
• 7.0 Scaffolding Modification Request and Approval Workflow
• 8.0 Engineering Assessment and Design Verification (where required)
• 9.0 Isolation, Exclusion Zones and Permit Controls During Modification
• 10.0 Step‑by‑Step Procedure for Implementing Approved Modifications
• 11.0 Post‑Modification Inspection, Tagging and Handover to Users
• 12.0 Documentation, Records and Drawing/Design Updates
• 13.0 Communication of Changes to Trades and Contractors
• 14.0 Managing Unauthorised or Non‑Compliant Modifications
• 15.0 Emergency Procedures and Incident Reporting Related to Scaffolding
• 16.0 Training, Induction and Competency Verification
• 17.0 Monitoring, Review and Continuous Improvement of the Procedure

Legislation & References

• Work Health and Safety Act 2011 (Cth and corresponding state/territory legislation)
• Work Health and Safety Regulations 2011 – Part 4.5 High Risk Work and Scaffolding
• Safe Work Australia – Model Code of Practice: Managing the Risk of Falls at Workplaces
• Safe Work Australia – Model Code of Practice: Construction Work
• AS/NZS 1576 Scaffolding series
• AS/NZS 4576: Guidelines for scaffolding
• Relevant state/territory scaffolding and high risk work licence requirements (e.g. SafeWork NSW, WorkSafe Victoria, WorkSafe QLD)