Any substance posing a risk to health, safety, or the environment during transport, handling, or storage. Subcontractors working with hazmat must hold proper certifications and follow WHMIS and TDG regulations. Non-compliance can result in fines, site removal, or contract termination.
Hazmat (hazardous Materials)
Related Terms
Agreed Order
ComplianceA court-approved settlement between parties that resolves a dispute without a full trial. For subcontractors, it often governs payment terms, lien releases, or compliance obligations. Both sides must follow its terms or face legal consequences.
NCCCO (National Commission for the Certification of Crane Operators)
ComplianceA U.S.-based accreditation body that certifies crane operators through standardised written and practical exams. Many oil and gas and construction clients require NCCCO certification before allowing lift operations on site. Subcontractors must confirm their operators hold valid credentials to avoid mobilisation delays or contract disqualification.
IDLH (Immediately Dangerous To Life and Health)
ComplianceAn IDLH condition is any environment that poses an immediate threat to a worker's life or ability to self-rescue. Subcontractors must halt work and evacuate personnel when IDLH levels are detected. Entering an IDLH atmosphere requires supplied-air respirators and a trained standby rescue team.
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.
TRIIPP (Temperature-related Injury and Illness Prevention Plan)
ComplianceA documented safety plan addressing heat stress and cold exposure risks for workers in outdoor or industrial environments. Subcontractors may be required to submit a TRIIPP before mobilising crews to remote or extreme-climate worksites. It typically outlines monitoring procedures, acclimatisation schedules, and emergency response protocols.
Separation Distance
ComplianceThe minimum required space between workers, equipment, or hazardous materials on a job site. Subcontractors must verify these distances before mobilising crews or staging equipment. Violating specified separation distances can trigger stop-work orders and affect contract standing.
Latest Compliance News
$3.5M in OSHA Fines Follow Houston Chemical Spill Cleanup That Left Workers Unprotected
Three companies face over $3.5 million in proposed OSHA penalties after federal inspectors found workers were sent into a million-gallon sulfuric acid spill cleanup without adequate training, respirators, or safety measures at a Houston-area facility.
20 hours ago ComplianceOhio Gas Explosion Triggered by Contractor Strike Destroys Three Homes, Damages 30 More
A contractor struck a natural gas line in Twinsburg Township, Ohio on June 25, 2026, triggering an explosion that destroyed three homes and damaged more than 30 others. The incident is now under investigation by state regulators, with questions over utility marking accuracy at the center of the probe.
20 hours ago ComplianceVirginia Tech Expert Calls for Automating Away Construction Hazards, Not Just Managing Them
A construction school director argues the industry must eliminate dangerous tasks entirely through automation, not rely on PPE and warning systems that can still fail.
20 hours ago ComplianceConfined Space Rescue Plans Have Critical Gaps, Industry Experts Warn
Safety+Health Magazine identifies the most commonly overlooked factors in confined space rescue planning, from over-reliance on local emergency services to skipping non-entry rescue methods and regular drills.
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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.
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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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