Mandatory safeguards required when workers enter excavations deeper than 1.2 metres. Methods include sloping, shoring, or trench boxes to prevent soil collapse. Subcontractors must have a competent supervisor on-site to assess and implement the correct system.
Cave-In Protection
Related Terms
Utility Locating
ComplianceThe process of identifying and marking underground utilities before excavation begins. Subcontractors are often required to confirm locates are valid before breaking ground. Failure to comply can result in strikes, liability, and work stoppages.
Call 811
ComplianceNorth American one-call notification service subcontractors must contact before excavation to have underground utilities located and marked. Skipping this step can cause utility strikes, project shutdowns, and personal liability for damages. Most jurisdictions require proof of notification before digging permits are issued.
Energized Line
ComplianceA pipe or cable actively carrying voltage, pressure, or hazardous fluid during work operations. Subcontractors must verify isolation and lockout/tagout status before any work begins. Unauthorised contact can trigger serious liability and stop-work orders.
Controlling Employer
ComplianceThe prime contractor or site owner who directs work conditions and sets safety rules on a multi-employer worksite. As a subcontractor, you may still be cited for hazards even if the controlling employer created them. Knowing who holds this role determines your compliance obligations on any jobsite.
Loss of Containment
ComplianceAn unplanned release of a hazardous substance — liquid, gas, or solid — from piping, vessels, or equipment. For subcontractors, an LOC incident can trigger immediate work stoppages, site investigations, and liability exposure. Proper reporting and response procedures are typically required under your prime contractor agreement.
Smart Work Zone
ComplianceA construction or industrial site equipped with sensors, cameras, and connected devices to monitor traffic, equipment, and worker movement in real time. Subcontractors operating in these zones must comply with data-sharing and equipment compatibility requirements set by the prime contractor. Non-compliance can result in site access delays or contract penalties.
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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