DPF (Diesel Particulate Filter)

A provision in occupational health and safety legislation requiring employers to protect workers from recognised hazards, even when no specific regulation exists. For subcontractors, this means you can be cited for unsafe conditions on site regardless of client-controlled environments. It applies to your workers whether you own the worksite or not.

A structured safety and work review completed by a crew before starting a job on site. Subcontractors use it to identify hazards, assign roles, and confirm equipment readiness. It is often required by the prime contractor before work can begin.

To bring electrical equipment or a system into a live, powered state on a job site. Subcontractors must confirm proper authorisation and lockout/tagout clearance before energizing any equipment. Premature energizing is a leading cause of worksite incidents and contractor liability.

A designated area on a job site where active work is performed, governed by strict safety and access controls. Subcontractors must obtain proper authorisation before entering and adhere to posted hazard signage. Boundaries are typically marked with barriers, flagging, or signage established by the prime contractor.

A written agreement where a subcontractor gives up the right to file a builders' or mechanics' lien before work begins. General contractors or owners often require it as a condition of awarding a contract. Review carefully — signing one limits your legal options if payment disputes arise.

A government-issued dig permit confirming underground utilities have been located and marked before excavation begins. Subcontractors must obtain one before any ground-disturbance work. Operating without one exposes your crew to liability, fines, and project shutdowns.

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