NSR (New Source Review)

Water with salinity between fresh water and seawater, commonly encountered during drilling or site dewatering operations. Subcontractors must handle it as a controlled substance — improper disposal can trigger environmental violations and project shutdowns. Verify disposal protocols with the prime contractor before mobilising.

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.

A systematic programme ensuring stationary assets like pressure vessels, piping, and heat exchangers remain safe and fit for service. Subcontractors often deliver FEMI work through inspection, NDT, and repair scopes under an owner's integrity management plan. Expect strict documentation requirements and third-party sign-off before returning equipment to service.

A court order from a provincial or state government that halts work on a project or site. Subcontractors must stop operations immediately or risk legal penalties. This can freeze contracts, delay payments, and strand mobilised crews and equipment.

A formal process where subcontractors identify and evaluate site-specific risks before work begins. It documents potential dangers, required controls, and responsible parties. Most client operators require a completed hazard assessment before issuing a work permit.

A formal process where incident findings are shared across crews and job sites to prevent repeat occurrences. Subcontractors are often required by operators to distribute LFIs to their workforce and document acknowledgement. Failure to action LFIs can affect your standing on approved vendor lists.

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.

OSHA 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.

How 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.