A shored or sloped excavation method used to protect workers from cave-ins during underground pipeline or utility work. Subcontractors are typically required to design and document the system before crews enter any trench deeper than 1.2 metres. Compliance with provincial safety codes is mandatory and directly affects site access approvals.
Protective Trench System
Related Terms
Ansi/isea 138
ComplianceThe American National Standard for hand protection selection criteria. It gives subcontractors a structured method to match the right gloves to specific job hazards. Clients and prime contractors increasingly require documented compliance with this standard on worksites.
Hold Point
ComplianceA mandatory stop in work where a client or inspector must review and sign off before the subcontractor can proceed. Missing a hold point can void certifications or trigger costly rework. Always confirm hold points during project kickoff to avoid schedule delays.
811 (call Before You Dig)
ComplianceA 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.
Public Work
ComplianceA government-funded construction or infrastructure project, such as roads, bridges, or utilities. Subcontractors on public work must meet strict licensing, bonding, and prevailing wage requirements. These projects often involve longer payment cycles due to public procurement rules.
NDT (Non-destructive Testing)
ComplianceInspection methods used to evaluate welds, pipelines, and structures without damaging them. Common NDT techniques include ultrasonic, radiographic, and magnetic particle testing. Subcontractors often need certified NDT technicians on crew to meet client and regulatory requirements.
Methane Emissions Inventory
ComplianceA documented record of all methane releases from equipment and operations on a worksite. Subcontractors may be required to contribute data or maintain their own inventory to meet operator or regulatory reporting obligations. Accurate records help avoid penalties and support contract compliance.
Latest Compliance News
OSHA Sets August Hearings on 20+ Proposed Rule Rollbacks, Including Chemical and Fall Protection Standards
OSHA has scheduled virtual public hearings beginning August 19 on more than 20 proposed deregulatory rules, covering chemical exposure standards, respiratory protection, and fixed ladder safety systems. Subcontractors have until July 6 to register to testify.
20 hours ago ComplianceTrench Safety Stand Down Set for June 15-19, Registration Now Open
The National Utility Contractors Association is hosting the Trench Safety Stand Down June 15-19, open to all employers doing trench and excavation work. Utility and pipeline subcontractors can register crews online now.
20 hours ago ComplianceCSB Warns Chemical Facilities to Prep for Hurricane Season Now
The U.S. Chemical Safety Board is urging chemical facilities to complete hurricane preparations before a single storm can trigger a catastrophic release. Gulf Coast maintenance and turnaround subcontractors should expect heightened client scrutiny this season.
yesterday ComplianceEnverus and Four Energy Companies Launch AI Safety Platform for Oilfield Crews
Enverus has partnered with Continental Resources, BPX Energy, Chord Energy, and Ranger Energy Services to launch LifeSaver, an AI-powered field safety platform built for oilfield workers. Field pilots are planned for 2026, starting in the Bakken.
yesterdayRelated 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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