A clearly marked area on a worksite where only authorised personnel are permitted to enter. Subcontractors must identify and respect these boundaries before mobilising crews or equipment. Violations can result in stop-work orders, fines, or removal from site.
Exclusion Zone
Related Terms
NAVFAC (Naval Facilities Engineering Systems Command)
ComplianceThe U.S. Navy agency that manages construction, facilities, and infrastructure contracts on military installations. Subcontractors working NAVFAC projects must meet strict security, compliance, and documentation requirements. Expect rigorous vetting, access protocols, and federally mandated labour standards on all NAVFAC job sites.
PHMSA (Pipeline and Hazardous Materials Safety Administration)
ComplianceA U.S. federal agency that sets safety regulations for pipeline operations and hazardous materials transport. Subcontractors working on pipeline projects or hauling dangerous goods must meet PHMSA compliance standards. Non-compliance can result in fines, work stoppages, or contract termination.
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.
Written Work Plan
ComplianceA document submitted by a subcontractor outlining how a specific scope of work will be executed safely and efficiently. It typically covers methods, equipment, personnel, and hazard controls. Clients often require it before mobilisation or permit approval.
Prevailing Wage
ComplianceThe minimum hourly rate subcontractors must pay workers on government-funded projects, set by regional labour surveys. Rates vary by trade and location, directly affecting your bid pricing and labour costs. Underpaying prevailing wage on public contracts can result in fines, back pay obligations, and disqualification from future bids.
Heat Stress
ComplianceA condition where the body cannot cool itself fast enough during hot or humid work conditions. It poses serious health and liability risks for subcontractors with outdoor or confined-space crews. Unmanaged heat stress can trigger site shutdowns and affect your compliance standing with the prime contractor.
Latest Compliance News
Oshawa 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.
2 days agoComplianceNIOSH Releases Toolbox Talk on Overhead Power Line Hazards
NIOSH and CPWR published a new toolbox talk urging crane, lift and ladder crews to keep 20 feet of clearance from overhead power lines after a fatal crane incident on a school jobsite.
7 days agoComplianceCSB Report: Longview Tank Was Flagged "Not Fit for Service" 10 Months Before Fatal Failure
The U.S. Chemical Safety Board found that an inspection report warned Nippon Dynawave that a storage tank at its Longview, WA mill was unfit for continued service months before it failed, killing 11 workers.
9 days agoComplianceCSB Update: Fatal H2S Release at WV Refiner Tied to Missing Decommissioning Procedures
The U.S. Chemical Safety Board's ongoing probe into a fatal April 2026 hydrogen sulfide release at Catalyst Refiners in Institute, West Virginia, found workers lacked gas monitors and proper respirator filters during decommissioning work.
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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