An emissions control device fitted to diesel-powered equipment that traps soot and particulate matter from exhaust. Subcontractors must ensure DPFs are maintained and operational to meet Tier 4 emissions requirements on regulated job sites. Failing inspections or bypassing filters can result in equipment being pulled from service.
Compliance Glossary Term
DPF (Diesel Particulate Filter)
Related Terms
Indemnification
ComplianceA contractual obligation where one party agrees to cover another's losses, claims, or legal costs. For subcontractors, indemnification clauses often require you to absorb liability even for an operator's own negligence. Always have legal counsel review these clauses before signing.
Wetland Delineation
ComplianceA regulatory survey that identifies and maps wetland boundaries on or near a project site. Subcontractors must respect these boundaries during ground disturbance, trenching, or equipment staging. Work within delineated areas typically requires additional permits and can trigger project delays.
Defense Production Act
ComplianceA U.S. federal law allowing the government to prioritise contracts and redirect materials to national security needs. Subcontractors may face supply chain delays or material shortages when it is invoked. Equipment and parts sourcing timelines can shift significantly with little notice.
Jones Act Waiver
ComplianceA temporary federal exemption allowing foreign-flagged vessels to transport cargo between U.S. ports. Subcontractors may encounter this during emergency offshore operations or disaster response work. Waivers affect vessel availability, crewing rules, and subcontract scope on marine projects.
Cave-In
ComplianceThe sudden collapse of excavation walls or trench sides onto workers below. Under provincial OHS regulations, subcontractors must implement protective systems before personnel enter any excavation deeper than 1.2 metres. Failure to comply can result in work stoppages, fines, and serious liability exposure.
NSSGA (National Stone, Sand & Gravel Association)
ComplianceA U.S. trade association representing aggregate producers and suppliers. Subcontractors working aggregate sites must often meet NSSGA safety and operational standards. Their guidelines influence site rules, equipment specs, and contractor qualification requirements.
Latest Compliance News
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