Hazard Orientation

The percentage of scheduled preventive maintenance tasks completed on time. High PM compliance protects subcontractors from liability and supports equipment uptime on client sites. Clients often audit PM records before renewing service contracts.

An unplanned release of a hazardous substance — liquid, gas, or solid — from piping, vessels, or equipment. For subcontractors, an LOC incident can trigger immediate work stoppages, site investigations, and liability exposure. Proper reporting and response procedures are typically required under your prime contractor agreement.

Tradeable certificates representing one tonne of CO2 reduced or removed from the atmosphere. Large operators purchase these to meet emissions targets, which can flow down as reporting requirements to subcontractors. Tracking your fleet's fuel consumption and emissions data may be required to support client compliance.

Ontario's grid authority that balances electricity supply and demand across the province. Subcontractors working on power infrastructure or energy projects must align schedules with IESO dispatch requirements. Grid maintenance windows and outage approvals are coordinated through IESO protocols.

A system for categorising ground conditions by type, stability, and load-bearing capacity. Subcontractors use it to determine excavation methods, shoring requirements, and equipment suitability. Misreading soil class can trigger safety violations or costly project delays.

The prime contractor or site owner who directs work conditions and sets safety rules on a multi-employer worksite. As a subcontractor, you may still be cited for hazards even if the controlling employer created them. Knowing who holds this role determines your compliance obligations on any jobsite.

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.