Approved Vendor List

A series of repeated safety or regulatory infractions flagged by inspectors or clients over time. For subcontractors, it signals systemic non-compliance and can trigger contract termination or disqualification from future bids. Regulators may impose escalating fines or mandatory audits based on documented patterns.

Human-caused ground tremors triggered by oilfield operations like hydraulic fracturing or wastewater disposal. Regulators may issue stop-work orders, directly halting your field operations. Subcontractors should track local seismic thresholds, as exceeding them can suspend permits and delay project timelines.

A regulatory and operational standard confirming that pressure-containing equipment is fit for service and free from defects. Subcontractors working on vessels, pipelines, or wellheads must often meet MI requirements before commencing work. Non-compliance can halt operations and trigger liability for field service crews.

A U.S. federal agency that funds and regulates public transit infrastructure projects. Subcontractors working on federally funded transit construction must meet strict FTA compliance requirements. These include labour standards, safety protocols, and Buy America provisions for materials.

The limited timeframe in which a subcontractor can identify and formally report hidden site conditions that differ from the original contract scope. Missing this window typically voids your right to claim additional compensation or schedule relief. Review your contract carefully — discovery windows can be as short as 24 to 72 hours after encountering the condition.

The FAR governs purchasing rules for U.S. federal contracts, including subcontractor requirements on government-funded projects. If your prime contractor holds a federal contract, FAR clauses flow down and bind your work. These rules cover pricing, record-keeping, audits, and labour standards you must follow.

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.