Permit (well Permit)

Formal renewal of a previously approved work permit, purchase order, or scope of work that has expired or exceeded its original limits. Subcontractors must secure reauthorization before continuing work to avoid unpaid labour exposure. Delays in reauthorization can stall field crews and disrupt project schedules.

A struck-by hazard refers to any situation on a worksite where personnel risk injury from a moving object, such as swinging loads, dropped tools, vehicles, or pressurised line failures — a leading cause of fatality that subcontractors must identify and control in their site-specific hazard assessments and toolbox talks. For field service crews working around heavy equipment, cranes, or high-traffic laydown yards, recognising and mitigating struck-by risks is a core compliance obligation under provincial occupational health and safety legislation.

A PFAS (Personal Fall Arrest System) is safety equipment that stops a worker from hitting the ground during a fall. It typically includes a full-body harness, lanyard, and anchor point. Subcontractors must ensure PFAS equipment is inspected, certified, and meets provincial and federal regulations before workers go at height.

A mandatory work stoppage called by a prime contractor or owner to address an immediate safety concern or incident. All field personnel halt operations and gather for a safety review before work resumes. Subcontractors must comply immediately, regardless of schedule or milestone pressures.

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 government or operator-imposed halt on specific activities, such as drilling or fracking, in a region. For subcontractors, this means work orders stop and contracts may be suspended without pay. Always review force majeure clauses before mobilising to areas under active moratorium discussions.

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.