CLA (Combined Licence Application)

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 operators use when key personnel on a project are swapped out or replaced. Subcontractors must often submit documentation and get approval before substituting workers mid-contract. Failing to follow this process can result in work stoppages or contract penalties.

An accidental hit on a buried utility line — gas, electrical, or telecom — during excavation or drilling. Subcontractors face immediate work stoppages, liability exposure, and potential regulatory penalties. Always confirm locate tickets are current before ground disturbance.

A legally designated corridor of land where pipeline, power line, or infrastructure work is permitted to occur. Subcontractors must obtain ROW clearance before mobilising equipment or beginning ground disturbance. Working outside the approved ROW can trigger stop-work orders, fines, and contract liability.

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.

The controlled release of gases from pipelines, vessels, or equipment during maintenance, commissioning, or decommissioning work. Subcontractors must follow site-specific venting procedures to remain compliant with environmental and safety regulations. Improper venting can result in work stoppages, fines, or removal from site.

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.

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.