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
Osha (occupational Safety and Health Administration) Recordable
ComplianceA work-related injury or illness that must be logged on an OSHA 300 form. This includes incidents requiring medical treatment beyond first aid, restricted work, or lost time. High recordable rates can disqualify subcontractors from bidding on major operator contracts.
Fitness-For-Service (ffs)
ComplianceA formal engineering assessment that determines whether aging or damaged equipment is safe to keep operating. Subcontractors may be required to conduct or document FFS evaluations before resuming work on pressure vessels, pipelines, or structural components. Results directly affect your scope of work, liability exposure, and project timelines.
Caught-In Hazard
ComplianceA workplace danger where a worker's body or clothing becomes trapped, pinched, or pulled into moving machinery, equipment, or materials — common on oilfield and construction sites where subcontractor crews work near rotating equipment, conveyor systems, or heavy moving loads. Subcontractors are responsible for identifying and controlling these hazards through proper guarding, lockout/tagout procedures, and site-specific hazard assessments before work begins.
Osha 1926 Subpart P
ComplianceThe U.S. federal standard governing excavation and trenching safety on construction sites. Subcontractors must comply with shoring, sloping, and protective system requirements before workers enter any excavation. Non-compliance can result in stop-work orders, fines, and loss of site access.
CBP (Customs and Border Protection)
ComplianceThe U.S. federal agency that regulates the entry of workers, equipment, and materials across the Canadian-American border, which subcontractors must navigate when mobilising crews or hauling specialised equipment into U.S. job sites. Non-compliance with CBP requirements can result in delays at the border, seized equipment, or crews being turned away, making proper documentation and advance planning critical for cross-border field work.
MOC (Management of Change)
ComplianceA formal approval process required before altering scope, personnel, equipment, or procedures on a worksite. Subcontractors must submit MOC requests to the operator before making any unplanned changes. Skipping this step can result in work stoppages, liability exposure, or contract penalties.
Latest Compliance News
CSB Investigates Fatal Chemical Release at West Virginia Refining Facility
The U.S. Chemical Safety and Hazard Investigation Board has opened an investigation into a fatal hydrogen sulfide release at a West Virginia catalyst refining facility that killed two workers and injured more than 30 others.
22 hours ago ComplianceTwo Fatal Collapses at Violation-Heavy West Virginia Mines Signal Compounding Liability Risk
Two West Virginia coal miners died in separate accidents within 24 hours in early April 2026, both at mines with documented histories of dozens of safety violations. Here's what field contractors working near mining and heavy excavation sites need to know.
22 hours ago ComplianceH&P Retrofits 50 Engines With Dual-Fuel System, Cutting Diesel Use by Up to 85%
Helmerich & Payne has deployed Caterpillar's DGB Gen 2 Kit across 12 FlexRig rigs, displacing up to 85% of diesel with natural gas at a fraction of the cost of new engine replacement. Here's what it means for drilling subcontractors.
2 days ago ComplianceNew Excavator System Automatically Stops Bucket Before Hitting Buried Utilities
Xwatch Safety Solutions and RodRadar have partnered to create what they call the industry's first safety-grade system that physically halts excavator bucket movement the moment underground utilities are detected.
2 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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