Product Overview

Summary: This Lockout and Tagout (LOTO) procedure sets out a clear, legally defensible process for isolating and securing construction plant and equipment before inspection, maintenance, or repair. It helps Australian construction businesses prevent unexpected energisation, stored energy releases, and equipment movement that can cause serious injury or fatality.

Construction equipment presents multiple energy sources – electrical, hydraulic, pneumatic, mechanical, gravitational and stored pressure – that can unexpectedly activate if not properly controlled. This Lockout and Tagout Procedure for Construction Equipment provides a structured, step‑by‑step system for isolating, locking, tagging and verifying the de‑energised state of plant before any work is carried out. It is tailored to the realities of Australian construction sites, including mobile plant, subcontractor interfaces, and changing work fronts.

The SOP helps businesses meet their WHS duty of care by clearly defining when LOTO is required, who is authorised to apply locks and tags, and how isolations must be coordinated, documented and verified. It addresses common risks such as unplanned start‑up during servicing, release of stored hydraulic energy, and plant roll‑away on sloping ground. By implementing this procedure, construction companies can significantly reduce the likelihood of serious crush injuries, amputations and fatalities, while also demonstrating compliance during regulator inspections, client audits and incident investigations.

Beyond safety, the document also improves operational discipline and communication on site. It standardises lock and tag systems across multiple crews and subcontractors, reduces confusion about who controls an isolation, and provides clear guidance for complex isolations involving multiple trades. The result is safer maintenance, fewer near misses, and more predictable project delivery.

Key Benefits

• Prevent unexpected energisation and movement of construction equipment during maintenance and repair.
• Reduce the risk of serious injuries, amputations and fatalities associated with uncontrolled plant and stored energy.
• Ensure compliance with Australian WHS legislation and relevant plant and equipment safety standards.
• Standardise lockout and tagout practices across employees, subcontractors and multiple work fronts.
• Improve communication and accountability through clear isolation responsibilities and documentation requirements.

Who is this for?

• Construction Site Managers
• Site Supervisors and Forepersons
• Plant and Equipment Operators
• Maintenance Technicians and Fitters
• WHS Managers and Advisors
• Construction Project Managers
• Electrical Supervisors
• Fleet and Asset Managers
• Safety Representatives and HSRs

Hazards Addressed

• Unexpected start‑up of engines or motors during servicing or inspection
• Release of stored hydraulic, pneumatic or spring energy
• Uncontrolled movement or roll‑away of mobile plant and equipment
• Crush and entanglement injuries from moving parts
• Contact with live electrical components during maintenance
• Uncontrolled lowering of raised loads, booms or attachments
• Inadvertent activation of remote or automated control systems
• Failure to recognise multiple energy sources on complex plant

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions (Lockout, Tagout, Isolation, Authorised Person, Affected Person)
• 3.0 Roles and Responsibilities (PCBU, Site Management, Supervisors, Operators, Maintenance Personnel)
• 4.0 Applicable Plant and Construction Equipment
• 5.0 Pre‑Use Planning and Risk Assessment Requirements
• 6.0 Lockout and Tagout Equipment Requirements (Locks, Tags, Hasps, Isolation Devices)
• 7.0 General Lockout and Tagout Principles
• 8.0 Step‑by‑Step Lockout and Tagout Procedure for Construction Equipment
• 9.0 Verification of Isolation and Testing for Zero Energy
• 10.0 Managing Stored Energy (Hydraulic, Pneumatic, Mechanical, Gravitational, Electrical)
• 11.0 Group Lockout Procedures for Multiple Workers and Trades
• 12.0 Shift Change, Handover and Continuity of Isolation
• 13.0 Removal of Locks and Tags and Return to Service
• 14.0 Contractor and Subcontractor Management Requirements
• 15.0 Training, Competency and Authorisation Requirements
• 16.0 Signage, Labelling and Colour‑Coding Conventions
• 17.0 Documentation, Permits and Isolation Registers
• 18.0 Incident, Near Miss and Non‑Compliance Reporting
• 19.0 Inspection, Maintenance and Audit of LOTO Systems
• 20.0 Review and Continuous Improvement of the Procedure

Legislation & References

• Work Health and Safety Act 2011 (Cth and relevant state/territory variants)
• Work Health and Safety Regulations 2011 – Part 4.2: Duties of persons conducting businesses or undertakings involving plant
• Safe Work Australia – Code of Practice: Managing the Risks of Plant in the Workplace
• Safe Work Australia – Model Code of Practice: Construction Work
• AS/NZS 4024.1603: Safety of machinery – Design of controls, interlocks and guards – Prevention of unexpected start‑up
• AS 4024 series: Safety of machinery
• AS/NZS 4801: Occupational health and safety management systems (superseded but still commonly referenced)
• ISO 45001: Occupational health and safety management systems (for organisations aligning to current best practice)