Api 653

A system that controls airflow in enclosed underground worksites to remove hazardous gases, dust, and fumes. Subcontractors must verify ventilation meets regulatory standards before crews enter. Inadequate ventilation can trigger work stoppages and liability for prime contractors.

A government-issued permit allowing equipment, technology, or services to be delivered across international borders. Subcontractors must secure this before mobilising tools or personnel to foreign project sites. Missing authorisation can halt operations and trigger costly delays.

The U.S. federal agency that regulates the entry of workers, equipment, and materials across the Canadian-American border, which subcontractors must navigate when mobilising crews or hauling specialised equipment into U.S. job sites. Non-compliance with CBP requirements can result in delays at the border, seized equipment, or crews being turned away, making proper documentation and advance planning critical for cross-border field work.

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 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.

A location where a worker's body part can be caught between moving and stationary objects. Common on heavy equipment, rigging, and rotating machinery at oil and gas and construction sites. Subcontractors must identify and guard pinch points during site hazard assessments.

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.