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.
Leave-To-Construct
Related Terms
IADC (International Association of Drilling Contractors)
ComplianceA 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
ComplianceEngineered 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)
ComplianceA 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
ComplianceThe 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)
ComplianceA 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)
ComplianceA 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.
Latest Compliance News
Oshawa GO Station Expansion Breaks Ground, Adding Track and Platform Packages
Construction has started on a major expansion of Durham College Oshawa GO Station, adding two tracks, new platforms, and pedestrian bridges to support two-way, all-day GO service, Daily Commercial News reports.
2 days agoComplianceNIOSH Releases Toolbox Talk on Overhead Power Line Hazards
NIOSH and CPWR published a new toolbox talk urging crane, lift and ladder crews to keep 20 feet of clearance from overhead power lines after a fatal crane incident on a school jobsite.
7 days agoComplianceCSB Report: Longview Tank Was Flagged "Not Fit for Service" 10 Months Before Fatal Failure
The U.S. Chemical Safety Board found that an inspection report warned Nippon Dynawave that a storage tank at its Longview, WA mill was unfit for continued service months before it failed, killing 11 workers.
9 days agoComplianceCSB Update: Fatal H2S Release at WV Refiner Tied to Missing Decommissioning Procedures
The U.S. Chemical Safety Board's ongoing probe into a fatal April 2026 hydrogen sulfide release at Catalyst Refiners in Institute, West Virginia, found workers lacked gas monitors and proper respirator filters during decommissioning work.
9 days agoRelated Guides
When a Jobsite Incident Happens: What Field Workers Need to Know Before Signing Anything
What to do after a jobsite injury or incident, what your rights are before signing incident reports, how workers' compensation works, and how to protect yourself on multi-employer worksites.
Compliance GuideOSHA Citations on Multi-Employer Worksites: What Subcontractors Need to Know
Learn how OSHA's multi-employer citation policy works, why subcontractors get cited for hazards they didn't create, and how to protect your company on operator-controlled job sites.
Compliance GuideHow to Read and Negotiate an Oilfield Master Service Agreement (MSA): A Subcontractor's Guide
Learn which MSA clauses actually matter for oilfield subcontractors: indemnity, insurance, payment terms, and change orders. Know what you're signing.
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