Api 653

The restricted, secured zone of an airport beyond passenger screening. Subcontractors working airside — such as fuelling crews or ground maintenance teams — must hold valid airside passes and follow strict security protocols. Access is tightly controlled and non-compliance can result in immediate removal from site.

The ability of a well to contain fluids and pressure without uncontrolled release. Subcontractors performing wellsite work must follow strict well integrity protocols to prevent blowouts or leaks. Failure to comply can result in contract termination and regulatory penalties.

A framework governing how subcontractors manage workplace hazards, environmental risks, and worker wellbeing on job sites. Most operators require subcontractors to meet specific EHS standards before awarding contracts. Non-compliance can result in site removal, fines, or disqualification from future work.

Any task performed at an elevation where a fall could cause injury, typically above 3 metres. Subcontractors must hold valid Working at Heights certification and comply with provincial OH&S regulations. Clients often require proof of training before allowing workers on site.

A government-issued restriction prohibiting open burning, including burn barrels and brush fires, within a designated area. Subcontractors must halt any permitted burning activities immediately and may face project delays. Check with your site supervisor and local authority before resuming work involving open flame or debris disposal.

A standardised code system used to classify businesses by industry type across Canada, the US, and Mexico. Subcontractors use NAICS codes when registering with clients, bidding on contracts, or filing taxes. Your code signals what work you perform and affects vendor qualification and insurance requirements.

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.