Any task performed at an elevation where a fall could cause injury, typically above 3 metres. Subcontractors must hold valid Working at Heights certification and comply with provincial OH&S regulations. Clients often require proof of training before allowing workers on site.
Working At Heights
Related Terms
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.
360-Degree Site Documentation
ComplianceA site capture method using panoramic cameras to record full visual records of a worksite. Subcontractors use it to document pre-existing conditions before mobilising. It protects against liability disputes over damage or incomplete scopes.
Pinch Point
ComplianceA location where a worker's body part can be caught between moving and stationary objects. Common on heavy equipment, rigging, and rotating machinery at oil and gas and construction sites. Subcontractors must identify and guard pinch points during site hazard assessments.
Sleep Debt
ComplianceThe cumulative sleep loss built up over successive long shifts or rotations. Workers carrying sleep debt show impaired judgement and slower reaction times. It is a recognised fatigue risk factor under worksite safety regulations.
Agreed Order
ComplianceA court-approved settlement between parties that resolves a dispute without a full trial. For subcontractors, it often governs payment terms, lien releases, or compliance obligations. Both sides must follow its terms or face legal consequences.
Hazardous Energy Isolation
ComplianceThe 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.
Latest Compliance News
Ontario Pushes for Cross-Canada Construction Safety Standards by 2027
Ontario's Ministry of Labour is leading a national push to harmonize construction health and safety training, with Working at Heights and MEWP standards targeted for alignment by January 2027.
7 days agoComplianceWearables 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.
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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