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ComplianceGlossary Term

Leave-To-Construct

A regulatory approval authorizing a pipeline or facility to proceed to physical construction. Subcontractors cannot mobilise crews or begin ground disturbance until this permit is granted. Delays in approval directly impact project start dates and subcontractor scheduling.

Related Terms

IADC (International Association of Drilling Contractors)

Compliance

A global industry body that sets drilling standards, safety training programmes, and well control certifications. Subcontractors working on drilling sites often need IADC-recognised credentials to qualify for contracts. Holding valid IADC certifications can directly affect your crew's eligibility and your bid competitiveness.

Excavation Protective Systems

Compliance

Engineered safeguards—such as shoring, shielding, or sloping—used to prevent trench or excavation collapse on job sites. Subcontractors are typically responsible for selecting and installing the correct system based on soil conditions and depth. Non-compliance can result in stop-work orders, fines, or liability for injuries.

Heat Nep (heat National Emphasis Program)

Compliance

A targeted OSHA enforcement initiative directing inspectors to prioritise heat illness inspections at outdoor and indoor worksites. Subcontractors in oil & gas and construction face heightened scrutiny of heat safety plans, water access, and worker training. Non-compliance can trigger citations, fines, and work stoppages.

Metering Calibration

Compliance

The process of verifying and adjusting flow meters, pressure gauges, and other measurement instruments to ensure accurate readings that meet regulatory and client standards — subcontractors providing metering services must maintain current calibration records as proof of compliance and to avoid liability for measurement disputes or billing discrepancies.

IEEPA (International Emergency Economic Powers Act)

Compliance

A U.S. federal law that grants the president broad authority to regulate or block international trade and financial transactions during a declared national emergency, which can directly affect subcontractors by triggering sudden tariffs on imported equipment and materials, disrupting cross-border project timelines, or restricting payments to and from American clients and primes. Field service companies working on U.S.-linked contracts or sourcing materials from affected countries should monitor IEEPA-related executive orders closely, as cost structures and contract terms can shift with little notice.

PSM (Process Safety Management)

Compliance

A regulatory framework governing hazardous process facilities like refineries and gas plants. Subcontractors working on-site must comply with the operator's PSM programme, including hazard reviews and safe work permits. Non-compliance can result in immediate removal from site.

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