Product Overview

Summary: This Padlock Supplies Safe Operating Procedure sets out a clear, compliant system for selecting, issuing, tracking and maintaining padlocks used for safety, security and lockout/tagout (LOTO) in Australian workplaces. It helps businesses standardise how padlocks are managed across sites, reducing the risk of unauthorised access, accidental energisation and security breaches.

Padlocks are a critical control in many Australian workplaces, underpinning both security and safety systems such as lockout/tagout, isolation of plant, restricted access to hazardous areas and controlled storage of chemicals or high‑value items. When padlocks are purchased ad‑hoc, shared between workers or poorly tracked, businesses face real risks: unsafe isolation practices, keys going missing, uncontrolled access to hazards and confusion during maintenance or emergency work. This Padlock Supplies Safe Operating Procedure provides a structured, repeatable method for managing the full lifecycle of padlocks used for WHS and security purposes.

The SOP covers how to standardise padlock types and colours, allocate unique keys, maintain a padlock register, and manage issuing, returning and replacing locks across multiple teams and sites. It supports compliance with Australian WHS legislation by reinforcing effective isolation procedures and ensuring that personal safety locks remain under the sole control of the worker they protect. By implementing this procedure, organisations can demonstrate due diligence, streamline purchasing and inventory control, and provide clear guidance to supervisors, stores personnel and field workers on how padlocks are to be used, stored and audited. The result is a safer, more secure and more efficient workplace where padlock management is no longer left to chance.

Key Benefits

• Standardise padlock specifications, colours and keying systems across the organisation to support clear, consistent safety and security practices.
• Ensure effective isolation and lockout/tagout (LOTO) by defining how personal and group safety padlocks are issued, controlled and audited.
• Reduce the risk of unauthorised access, accidental energisation and security breaches through clear rules for key control and padlock storage.
• Streamline purchasing and inventory management of padlocks and accessories, reducing wastage, duplication and stock‑outs.
• Demonstrate WHS due diligence with a documented, auditable system for managing padlocks used in safety‑critical applications.

Who is this for?

• WHS Managers
• Health and Safety Representatives (HSRs)
• Site Supervisors
• Maintenance Supervisors
• Electrical Supervisors
• Warehouse and Stores Coordinators
• Lockout/Tagout Authorised Persons
• Facilities Managers
• Plant and Operations Managers
• Security Managers

Hazards Addressed

• Unexpected energisation or start‑up of plant and equipment during maintenance or cleaning
• Unauthorised access to restricted or hazardous areas
• Tampering with isolations or safety devices due to uncontrolled key access
• Loss or sharing of personal safety locks leading to compromised lockout/tagout procedures
• Security breaches involving tools, chemicals or high‑value equipment stored in locked areas

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions (Padlock Types, Keying Systems, LOTO Terminology)
• 3.0 Roles and Responsibilities
• 4.0 Padlock Types, Colour Coding and Keying Policy
• 5.0 Procurement and Approval of Padlock Supplies
• 6.0 Padlock Register and Identification Requirements
• 7.0 Issuing, Returning and Replacing Padlocks
• 8.0 Personal Safety Locks and Lockout/Tagout Requirements
• 9.0 Storage, Security and Key Control Procedures
• 10.0 Inspection, Maintenance and Audit of Padlock Supplies
• 11.0 Non‑conformance, Lost Keys and Incident Management
• 12.0 Training, Communication and Recordkeeping
• 13.0 Review, Continuous Improvement and Document Control

Legislation & References

• Work Health and Safety Act 2011 (Cth and corresponding State/Territory legislation)
• Work Health and Safety Regulations 2011 (Cth and corresponding State/Territory regulations) – duties relating to plant, isolation and lockout
• Safe Work Australia – Model Code of Practice: Managing risks of plant in the workplace
• Safe Work Australia – Model Code of Practice: Managing the work environment and facilities
• AS/NZS 4024.1603: Safety of machinery – Design of controls, interlocks and guarding (relevant to isolation and lockout systems)
• AS/NZS ISO 45001: Occupational health and safety management systems – Requirements with guidance for use