Discovery Window

A written document identifying hazards and controls for a specific task before work begins. Subcontractors are typically required to complete and submit JHAs to the prime contractor or site owner. Failure to have a compliant JHA on site can result in work stoppages or disqualification from bidding.

A pipe or cable actively carrying voltage, pressure, or hazardous fluid during work operations. Subcontractors must verify isolation and lockout/tagout status before any work begins. Unauthorised contact can trigger serious liability and stop-work orders.

A documented, step-by-step plan for isolating hazardous energy before subcontractors perform maintenance or service work. It outlines lockout/tagout steps specific to each piece of equipment on site. Subcontractors are typically required to follow or develop their own procedure that meets the site owner's standards.

A health hazard caused by prolonged exposure to cold temperatures, wind, or moisture on outdoor worksites. It includes conditions like hypothermia, frostbite, and trench foot. Subcontractors must have cold stress protocols in place to meet occupational health and safety obligations.

Ontario's regulatory body overseeing electricity and natural gas utilities. Subcontractors working on regulated energy infrastructure in Ontario must align with OEB-approved project scopes and rate structures. Non-compliance can affect contract eligibility with major utilities.

Designated facilities licenced to store hazardous materials such as fuel, chemicals, or drilling fluids under strict regulatory approval. Subcontractors must verify their storage sites hold valid permits before mobilising hazardous goods to a worksite. Non-compliance can trigger project shutdowns, fines, or loss of contract eligibility.

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.