A structural failure where damage to one component triggers a chain reaction, bringing down a larger portion of a structure. Subcontractors must identify and report early signs during inspections or modifications. Awareness is critical when working on aging infrastructure or post-incident sites.
Progressive Collapse
Related Terms
Confined Space Attendant
ComplianceA trained worker stationed outside a permit-required confined space to monitor entrants and conditions. They maintain communication with the entry team and initiate rescue procedures if hazards arise. Subcontractors must supply a qualified attendant or face work stoppages and liability on site.
Scope 1 and Scope 2 Emissions
ComplianceScope 1 covers direct emissions from equipment and vehicles your company owns or operates, such as diesel generators and fleet trucks. Scope 2 covers indirect emissions from purchased electricity used at your facilities or job sites. Prime contractors increasingly require subcontractors to track and report both when bidding on ESG-conscious projects.
I-9 (employment Eligibility Verification)
ComplianceA U.S. federal requirement to verify every worker's identity and legal right to work before mobilisation. Subcontractors must complete and retain I-9 forms for all field personnel, including short-term hires. Non-compliance can result in fines and disqualification from federal project work.
Sif-P (serious Injury and Fatality Potential)
ComplianceA classification applied to incidents or near-misses where the outcome could have caused death or life-altering injury. Operators use SIF-P ratings to trigger mandatory investigations that subcontractors must participate in. Field crews are expected to identify and report SIF-P exposures before work begins.
Landfill Gas
ComplianceGas produced by decomposing waste in landfills, primarily methane and carbon dioxide. Subcontractors working near landfill sites must account for LFG (Landfill Gas) detection and ventilation requirements. Exposure risks and monitoring obligations affect site safety planning and PPE requirements.
Process Safety
ComplianceThe discipline focused on preventing uncontrolled releases of hazardous materials or energy that could cause fires, explosions, or toxic events. Subcontractors working near pressurised systems or chemicals must understand site-specific process hazards before starting work. Non-compliance can result in immediate removal from site and liability exposure.
Latest Compliance News
IRS Waives Penalties for Red-Dyed Diesel on Highways Through Dec. 31
The IRS will not penalize highway use of dyed diesel from Oct. 1 to Dec. 31, 2026. Contractors running off-road fuel in trucks should still check state rules and document fuel purchases.
20 hours agoComplianceSpecialty Trades Cut Injury Rates 32.4% Since 2011-12, CPWR Finds
CPWR's June 2026 data bulletin shows nonfatal injury rates fell 46.9% in heavy and civil, 32.4% in specialty trades and 32.2% in building construction. Safety leads should benchmark against the specialty-trades figure before their next renewal.
20 hours agoComplianceOSHA Targets November Proposal to Revisit Computer-Based LOTO Controls
OSHA lists a lockout/tagout update (RIN 1218-AD00) with a November 2026 target for a proposed rule on computer-based controls. The current 29 CFR 1910.147 requirements still apply.
yesterdayComplianceOSHA Proposes $648K Against Six Contractors at Monroe, NY Excavation
OSHA cited a general contractor and five subcontractors at the Monroe Commons site for willful and serious excavation violations. The proposed penalties total $648,094.
6 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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