Excavation Protective Systems

A U.S. federal regulation governing the licensing of nuclear power plants and facilities. Subcontractors working on nuclear sites must comply with its strict safety, quality assurance, and documentation requirements. Non-compliance can result in work stoppages or removal from site.

A site where two or more employers operate simultaneously, such as an owner, general contractor, and subcontractors. Each party carries shared safety obligations under provincial OHS legislation. Subcontractors must understand their specific duties and how site control affects liability.

API 579 (Fitness-For-Service) is an industry standard used to assess whether ageing or damaged equipment is safe to keep operating. Subcontractors may be required to support or comply with these assessments during inspection and maintenance scopes. Understanding it helps when working alongside integrity engineers on pressure vessels, piping, and tanks.

A drug and alcohol testing method that assesses a worker's current functional fitness rather than detecting past substance use. It uses cognitive or physical performance baselines to flag impairment at the time of testing. Subcontractors must understand site requirements, as accepted methods vary by client and jurisdiction.

A work environment where crew members feel safe to report hazards, mistakes, or concerns without fear of punishment or ridicule. For subcontractors, it reduces incident rates and improves site communication. Crews with high psychological safety are more likely to flag near-misses before they escalate.

A formal document a subcontractor files to participate in a regulatory hearing affecting their work or contracts. It establishes your legal standing to present evidence or raise concerns. Missing the filing deadline can strip your right to contest decisions impacting your operations.

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.