The process of controlling dangerous energy sources—electrical, hydraulic, pneumatic, or mechanical—before maintenance or repair work begins. Subcontractors must follow the site owner's lockout/tagout (LOTO) procedures or risk losing site access. Non-compliance can void your contract and trigger serious liability.
Hazardous Energy Isolation
Related Terms
Fixed Ladder
ComplianceA permanently mounted ladder attached to a structure, vessel, or facility used to access elevated work areas. Subcontractors must ensure fixed ladders on their worksites meet provincial and federal safety standards before crews use them. Inspect for damage, proper cage guards, and fall arrest anchor points before starting elevated work.
Api 579
ComplianceAPI 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.
Walking-Working Surfaces Standard
ComplianceA regulatory standard governing slip, trip, and fall hazards on job sites. Subcontractors must ensure floors, platforms, ladders, and elevated surfaces meet inspection and guarding requirements. Non-compliance can result in stop-work orders or liability exposure on client sites.
Customs Broker
ComplianceA licensed intermediary who handles import and export paperwork for equipment and materials crossing international borders. Subcontractors moving tools or machinery into Canada or the U.S. often hire one to avoid costly delays. They ensure duties, tariffs, and compliance documents are filed correctly.
DOE (Department of Energy)
ComplianceA U.S. federal agency that regulates energy production, sets safety standards, and oversees projects involving nuclear, fossil fuel, and renewable energy. Subcontractors working on DOE-funded or DOE-regulated sites must meet strict compliance and security requirements. Contracts tied to DOE projects often include additional reporting obligations and certified personnel requirements.
Dust Suppression
ComplianceThe process of controlling airborne particulates on worksites using water trucks, chemical agents, or barriers. Subcontractors may be contractually responsible for dust suppression on access roads, laydown yards, or excavation sites. Failure to comply can result in stop-work orders or back-charges from the prime contractor.
Latest Compliance News
Miners' Union Presses MSHA to Restore Silica Dust Rule Enforcement
United Mine Workers of America president Brian Sanson is demanding MSHA immediately enforce its stalled silica exposure rule, citing new black lung data from coal country. The fight has direct implications for any contractor cutting, drilling or blasting rock and concrete.
2 days agoComplianceOSHA Probes Electrician's Death at Mizzou Stadium Renovation Site
OSHA opened an investigation after a 44-year-old electrical foreman died during a June workplace incident at the University of Missouri's Memorial Stadium renovation project.
2 days agoComplianceCO2 Pipeline Buildout Could Open Major New Market for Pipeline Contractors
Pipeline Technology Journal analysis shows the US aims to grow its CO2 pipeline network up to 20x by 2050, a buildout that could create sustained work for pipeline construction and integrity contractors.
3 days agoComplianceLightning-Sparked Fire Shuts Down Key Oklahoma Fuel Hub, Diesel Prices in Focus
A lightning strike ignited three storage tanks at Explorer Pipeline's Glenpool depot near Tulsa, halting operations at a hub that moves gasoline, diesel, and jet fuel across Texas, Oklahoma, and the Midwest.
5 days agoRelated Guides
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.
Compliance GuideOSHA 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.
Compliance GuideHow 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.
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