A written agreement where a subcontractor gives up the right to file a builders' or mechanics' lien before work begins. General contractors or owners often require it as a condition of awarding a contract. Review carefully — signing one limits your legal options if payment disputes arise.
Pre-Filing Waiver
Related Terms
Personal Fall Arrest System
ComplianceA PFAS (Personal Fall Arrest System) is safety equipment that stops a worker from hitting the ground during a fall. It typically includes a full-body harness, lanyard, and anchor point. Subcontractors must ensure PFAS equipment is inspected, certified, and meets provincial and federal regulations before workers go at height.
Procedure Drift
ComplianceThe gradual deviation from approved work methods or safety protocols, often through small, unnoticed shortcuts. For subcontractors, it creates serious liability exposure during audits or incident investigations. Clients may withhold payment or terminate contracts if drift is found during site inspections.
Medium-Voltage Gear
ComplianceElectrical switchgear and distribution equipment operating between 1 kV and 35 kV, commonly found on industrial sites and large construction projects. Subcontractors working near or on this equipment typically require specialised high-voltage certifications and site-specific safety training. Improper handling can trigger serious liability and compliance issues for your crew.
Situational Awareness
ComplianceA worker's real-time understanding of hazards, personnel, and conditions on a job site. For subcontractors, it means knowing who is working nearby, what equipment is active, and how conditions are changing. Strong situational awareness reduces incidents and keeps crews aligned with the prime contractor's safety expectations.
Protective System
ComplianceA method used to protect workers from cave-ins during excavation work, including sloping, shoring, or trench boxes. Subcontractors are legally required to implement an adequate protective system before workers enter any trench deeper than 1.2 metres. Failure to comply can result in stop-work orders, fines, or loss of contract.
Pm (preventive Maintenance) Compliance
ComplianceThe percentage of scheduled preventive maintenance tasks completed on time. High PM compliance protects subcontractors from liability and supports equipment uptime on client sites. Clients often audit PM records before renewing service contracts.
Latest Compliance News
Red Seal $5,000 Completion Bonus Portal Opens Nov. 16
Canadian journeypersons certified in a Red Seal trade on or after April 1, 2025 can apply for a $5,000 federal bonus starting Nov. 16, 2026. Here is what employers should prepare now.
2 days agoComplianceTraffic Exposure Was the Top Hazard on Caltrans LA Tunnel Relighting
On Aldridge Electric's I-405/I-105 tunnel relighting in Los Angeles, traffic breaches drove the safety plan. Here is what electrical and traffic control subs can take from it before bidding live-traffic work.
4 days agoComplianceFinning Fined $155K After 2023 Loader Injury Near Fort McMurray
Finning International pleaded guilty to an Alberta OHS Code count after a worker was struck by a moving loader in 2023. The $155,000 creative sentence funds third-party-site safety training.
5 days agoComplianceMIOSHA Cites MDOT Over Lane Closure in Fatal U.S. 127 Crash
MIOSHA found MDOT failed to close a lane during a rolling pothole repair on U.S. 127 where two road workers died in May. Highway maintenance subs should review their own moving-operation traffic control.
7 days agoRelated Guides
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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.
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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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