PUCO (Public Utilities Commission of Ohio)

A mandatory credential confirming workers are trained to enter and work in enclosed or restricted areas such as tanks, vessels, or excavations. Subcontractors must hold valid certification before site access is granted on most oil and gas and construction projects. Expired certificates can result in worker removal, project delays, or contract penalties.

A regulatory framework governing hazardous process facilities like refineries and gas plants. Subcontractors working on-site must comply with the operator's PSM programme, including hazard reviews and safe work permits. Non-compliance can result in immediate removal from site.

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.

A regulatory approval issued by provincial authorities before drilling or completing a well can begin. Subcontractors should confirm a valid licence is in place before mobilising, as work cannot legally proceed without it. Delays in licensing directly affect your crew scheduling and contract start dates.

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.

An accredited body that audits and certifies subcontractors under the U.S. Cybersecurity Maturity Model Certification programme. If you handle U.S. defence-related contracts, a C3PAO must verify your cybersecurity practices before you can bid. Without this certification, you may be disqualified from certain federal supply chain work.

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.