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ComplianceGlossary Term

Cave-In Protection

Mandatory safeguards required when workers enter excavations deeper than 1.2 metres. Methods include sloping, shoring, or trench boxes to prevent soil collapse. Subcontractors must have a competent supervisor on-site to assess and implement the correct system.

Related Terms

Utility Locating

Compliance

The process of identifying and marking underground utilities before excavation begins. Subcontractors are often required to confirm locates are valid before breaking ground. Failure to comply can result in strikes, liability, and work stoppages.

Call 811

Compliance

North American one-call notification service subcontractors must contact before excavation to have underground utilities located and marked. Skipping this step can cause utility strikes, project shutdowns, and personal liability for damages. Most jurisdictions require proof of notification before digging permits are issued.

Energized Line

Compliance

A pipe or cable actively carrying voltage, pressure, or hazardous fluid during work operations. Subcontractors must verify isolation and lockout/tagout status before any work begins. Unauthorised contact can trigger serious liability and stop-work orders.

Controlling Employer

Compliance

The prime contractor or site owner who directs work conditions and sets safety rules on a multi-employer worksite. As a subcontractor, you may still be cited for hazards even if the controlling employer created them. Knowing who holds this role determines your compliance obligations on any jobsite.

Loss of Containment

Compliance

An unplanned release of a hazardous substance — liquid, gas, or solid — from piping, vessels, or equipment. For subcontractors, an LOC incident can trigger immediate work stoppages, site investigations, and liability exposure. Proper reporting and response procedures are typically required under your prime contractor agreement.

Smart Work Zone

Compliance

A construction or industrial site equipped with sensors, cameras, and connected devices to monitor traffic, equipment, and worker movement in real time. Subcontractors operating in these zones must comply with data-sharing and equipment compatibility requirements set by the prime contractor. Non-compliance can result in site access delays or contract penalties.

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