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ComplianceGlossary Term

Protective Trench System

A shored or sloped excavation method used to protect workers from cave-ins during underground pipeline or utility work. Subcontractors are typically required to design and document the system before crews enter any trench deeper than 1.2 metres. Compliance with provincial safety codes is mandatory and directly affects site access approvals.

Related Terms

ESA (Endangered Species Act)

Compliance

Federal legislation protecting at-risk wildlife and their habitats from project-related disturbance. Subcontractors working near designated critical habitat may face work stoppages, seasonal restrictions, or mandatory wildlife surveys. Non-compliance can halt projects and expose crews to significant fines.

Management of Change

Compliance

A formal process for documenting and approving any deviation from original scope, equipment, or procedures on a worksite. Subcontractors must follow the prime contractor's MOC process before making field changes. Skipping this step can void your contract or expose your crew to liability.

DPF (Diesel Particulate Filter)

Compliance

An emissions control device fitted to diesel-powered equipment that traps soot and particulate matter from exhaust. Subcontractors must ensure DPFs are maintained and operational to meet Tier 4 emissions requirements on regulated job sites. Failing inspections or bypassing filters can result in equipment being pulled from service.

Third-Party Representative

Compliance

An independent inspector or agent hired by an operator or owner to verify that field work meets contract specifications. They are not your direct client but hold authority to approve, reject, or halt work on site. As a subcontractor, their sign-off is often required before progress billing is accepted.

Stop-Before-Strike

Compliance

A mandatory work pause requiring crews to verify no buried utilities or underground hazards exist before digging or drilling begins. Subcontractors are typically contractually responsible for completing all locates and documented checks before breaking ground. Failure to comply can void insurance coverage and expose your company to full liability for strikes.

Asme Bpv (boiler and Pressure Vessel) Code

Compliance

A set of standards governing the design, fabrication, and inspection of pressure vessels and boilers. Subcontractors working on pressure equipment must ensure their work meets applicable ASME BPV sections or risk failing inspection. Non-compliance can result in project shutdowns, liability exposure, and lost contracts.

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