The sudden collapse of excavation walls or trench sides onto workers below. Under provincial OHS regulations, subcontractors must implement protective systems before personnel enter any excavation deeper than 1.2 metres. Failure to comply can result in work stoppages, fines, and serious liability exposure.
Cave-In
Related Terms
Osha (occupational Safety and Health Administration) Recordables
ComplianceWork-related injuries or illnesses that must be logged on an OSHA 300 form. For subcontractors, these incidents can affect prequalification scores and client contract eligibility. High recordable rates often disqualify field crews from worksites entirely.
EPRI (Electric Power Research Institute)
ComplianceA U.S.-based non-profit that develops technical standards and research for the electric power industry. Subcontractors working on utility or power infrastructure projects may need to follow EPRI guidelines for equipment and installations. Their published standards can affect inspection, testing, and compliance requirements on job sites.
MVR (Motor Vehicle Record)
ComplianceAn official document showing a driver's licence history, violations, and suspensions. Clients and prime contractors often require MVRs before allowing subcontractor personnel to operate vehicles on site. A clean MVR is frequently a condition of insurance coverage and site access approval.
Section 232
ComplianceA U.S. trade law allowing tariffs on imported steel and aluminium deemed a national security threat. For subcontractors, it drives up material and equipment costs on cross-border projects. Budget accordingly when pricing jobs involving U.S.-sourced pipe, structural steel, or fabricated components.
Utility Locate
ComplianceA pre-dig service that identifies and marks underground utilities before excavation begins. Subcontractors are typically required to obtain a locate before breaking ground. Failure to do so can result in liability for damages, project shutdowns, or regulatory fines.
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.
Latest Compliance News
Wearables Offer Real-Time Heat Stress Monitoring for Construction Crews
Construction Executive reports that biometric sensors, smart helmets and connected vests now let crews track heat stress in real time, giving supervisors data to intervene before workers suffer heat exhaustion or stroke.
21 hours agoComplianceHibernia Platform's Second High-Potential Incident in Two Months Draws Regulator Scrutiny
A dropped casing joint injured a worker on the Hibernia offshore platform on July 18, marking the second potentially fatal incident there since May, World Oil reports. C-NLOER is monitoring the operator's investigation.
yesterdayComplianceOSHA Releases New Guidance for Small Employers Responding to Complaints and Referrals
OSHA published a new fact sheet and companion resource walking small employers through best practices for responding to complaint- and referral-driven inquiries, including investigation, documentation, and response timelines.
yesterdayComplianceWerner Opens Height Safety Innovation Center in Austin
Werner has launched a new Height Safety Center in Austin, Texas, offering hands-on training and product collaboration for fall protection and access equipment users, ISHN reports.
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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