Formal verification that a subcontractor meets a client's safety, technical, or insurance standards before being awarded work. Most major operators require active certification through third-party registries such as ISNetworld or Avetta. Lapsed certification can result in immediate removal from approved vendor lists.
Contractor Certification
Related Terms
NDE (Non-destructive Examination)
ComplianceTesting method used to inspect welds, pipes, and structures for defects without damaging the material. Subcontractors performing NDE must hold recognised certifications such as CGSB or ASNT. Clients often require NDE sign-off before authorising progress payments or work acceptance.
Methane Emissions Inventory
ComplianceA documented record of all methane releases from equipment and operations on a worksite. Subcontractors may be required to contribute data or maintain their own inventory to meet operator or regulatory reporting obligations. Accurate records help avoid penalties and support contract compliance.
Competent Person
ComplianceA worker recognised by a client or regulator as having the training, experience, and authority to identify hazards and direct safe work. Subcontractors are often required to designate a Competent Person on-site before work begins. Failing to do so can result in work stoppages or lost contracts.
Chain-Of-Custody
ComplianceA documented record tracking who handled materials, samples, or equipment at every stage of a job. Subcontractors must maintain this trail to prove proper handling and avoid liability disputes. It is commonly required for soil samples, hazardous materials, and serialised equipment.
Caught-In Hazard
ComplianceA workplace danger where a worker's body or clothing becomes trapped, pinched, or pulled into moving machinery, equipment, or materials — common on oilfield and construction sites where subcontractor crews work near rotating equipment, conveyor systems, or heavy moving loads. Subcontractors are responsible for identifying and controlling these hazards through proper guarding, lockout/tagout procedures, and site-specific hazard assessments before work begins.
Wetland Delineation
ComplianceA regulatory survey that identifies and maps wetland boundaries on or near a project site. Subcontractors must respect these boundaries during ground disturbance, trenching, or equipment staging. Work within delineated areas typically requires additional permits and can trigger project delays.
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