Leak Detection and Measurement

Mandatory safety systems used to prevent trench walls from collapsing on workers during excavation. Common methods include shoring, sloping, and trench boxes. Subcontractors are legally responsible for implementing compliant cave-in protection before workers enter any trench deeper than 1.2 metres.

The leading industry organisation that develops technical standards, safety protocols, and equipment specifications that subcontractors must follow when working on oil and gas projects. API certifications and compliance with API standards are often mandatory requirements in service contracts and can affect your ability to bid on projects.

A method of grouping all subcontractor invoices or costs together to assess total contract value or spending thresholds. Owners and primes use aggregate classification to trigger compliance requirements, audit rights, or tiered pricing terms. Subcontractors should track cumulative billing carefully, as crossing thresholds can change contract obligations.

A regulatory survey that identifies and maps wetland boundaries on or near a project site. Subcontractors must respect these boundaries during ground disturbance, trenching, or equipment staging. Work within delineated areas typically requires additional permits and can trigger project delays.

A free national service requiring subcontractors to notify utility companies before any ground disturbance. Utilities mark underground lines within 48–72 hours, reducing strike risk. Non-compliance can result in serious liability, fines, and project shutdowns.

The process of obtaining government approvals before starting work that may impact land, water, or air. Subcontractors must confirm permits are in place before mobilising — delays can halt work without pay. Missing or expired permits can expose your company to fines and contract termination.

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.