A substance or condition that can cause fire, explosion, or violent reaction when exposed to heat, air, water, or other chemicals. Subcontractors must identify these hazards during site orientations and follow the operator's safe handling procedures. Failure to do so can trigger immediate work stoppages or removal from site.
Reactive Hazard
Related Terms
After-Action Report
ComplianceA structured document completed after a job or incident, summarising what went wrong, what worked, and lessons learned. Subcontractors use it to improve future performance and satisfy client or regulatory requirements. It can also support insurance claims or dispute resolution.
Smart Ppe
CompliancePersonal protective equipment embedded with sensors that monitor worker vitals, location, and environmental hazards in real time. Data is transmitted to site supervisors, enabling faster emergency response. Subcontractors may be required to supply or wear client-specified Smart PPE as part of site access agreements.
Fall Prevention Campaign
ComplianceA structured site safety initiative targeting fall hazards across elevated work areas, scaffolding, and ladders. Subcontractors are typically required to participate and document compliance as a condition of their contract. It often involves toolbox talks, harness inspections, and audits by the prime contractor.
Spotter
ComplianceA designated worker who guides equipment operators during lifts, reversing, or blind manoeuvres to prevent accidents. Subcontractors are often required to supply certified spotters as part of site safety plans. Failing to have one on-site can halt work and trigger compliance issues.
Industrial Carbon Pricing
ComplianceA federal and provincial regulatory system that charges large emitters for greenhouse gas output above set limits. Subcontractors may face pass-through costs on fuel, equipment, and site operations. Understanding these charges helps you anticipate cost increases when bidding on projects.
Engineering Controls
CompliancePhysical or mechanical measures used to eliminate or reduce hazards at a worksite, such as guards, ventilation systems, or barriers. Subcontractors are often required to verify these controls are in place before work begins. They rank above administrative controls in the hierarchy of controls.
Latest Compliance News
Two Traffic Plans, One Work Zone: Closing the Safety Gap Subcontractors Miss
Construction Executive breaks down why work zone fatalities persist even when signage and cones follow the rules, pointing to a disconnect between public traffic control plans and internal crew/equipment protocols.
2 days agoComplianceNYC Voids 2,000 Safety Cards After Training Provider Fraud Indictment
New York City is invalidating roughly 2,000 construction safety credentials tied to RedCode Inc. after prosecutors indicted the company and two of its principals for allegedly selling training cards without conducting the required courses.
4 days agoComplianceMSHA Alert Pushes Mine Operators to Step Up Impoundment Inspections
MSHA has issued a safety alert calling on mine operators to increase engineering assessments and inspections of impoundments, citing aging infrastructure and heavier precipitation events.
5 days agoComplianceOshawa GO Station Expansion Breaks Ground, Adding Track and Platform Packages
Construction has started on a major expansion of Durham College Oshawa GO Station, adding two tracks, new platforms, and pedestrian bridges to support two-way, all-day GO service, Daily Commercial News reports.
9 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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