A U.S. federal agency that regulates safety at mines and quarries. Subcontractors working on mine sites must comply with MSHA standards, separate from OSHA rules. Workers may require site-specific MSHA training before mobilising.
MSHA (Mine Safety and Health Administration)
Related Terms
LDAR (Leak Detection and Repair)
ComplianceA regulated programme requiring subcontractors to inspect equipment for fugitive emissions using specialised tools like optical gas imaging cameras. Findings must be documented and repaired within set timeframes under federal and provincial regulations. Field crews performing LDAR work often require specific training and certification to stay compliant on site.
Metering Calibration
ComplianceThe process of verifying and adjusting flow meters, pressure gauges, and other measurement instruments to ensure accurate readings that meet regulatory and client standards — subcontractors providing metering services must maintain current calibration records as proof of compliance and to avoid liability for measurement disputes or billing discrepancies.
Brackish Water
ComplianceWater with salinity between fresh water and seawater, commonly encountered during drilling or site dewatering operations. Subcontractors must handle it as a controlled substance — improper disposal can trigger environmental violations and project shutdowns. Verify disposal protocols with the prime contractor before mobilising.
ASME (American Society of Mechanical Engineers)
ComplianceA global standards organisation that sets codes for pressure vessels, piping, and mechanical equipment used on job sites. Subcontractors working on boilers, pressure systems, or lifting equipment often must meet ASME standards to qualify for contracts. Non-compliance can trigger failed inspections, work stoppages, or liability exposure.
Hazardous Energy Isolation
ComplianceThe process of controlling dangerous energy sources—electrical, hydraulic, pneumatic, or mechanical—before maintenance or repair work begins. Subcontractors must follow the site owner's lockout/tagout (LOTO) procedures or risk losing site access. Non-compliance can void your contract and trigger serious liability.
Compliance Pathway
ComplianceA defined set of steps a subcontractor must complete to meet regulatory, safety, or client requirements before mobilising on a project. This may include certifications, insurance submissions, and safety orientations. Missing steps can delay onboarding or result in disqualification from a contract.
Latest Compliance News
Miners' Union Presses MSHA to Restore Silica Dust Rule Enforcement
United Mine Workers of America president Brian Sanson is demanding MSHA immediately enforce its stalled silica exposure rule, citing new black lung data from coal country. The fight has direct implications for any contractor cutting, drilling or blasting rock and concrete.
2 days agoComplianceMSHA Opens $250K Safety Training Grant Window, Deadline Aug. 31
MSHA is accepting applications through Aug. 31 for Brookwood-Sago Mine Safety Grants worth up to $250,000, funding emergency response and recovery training for mining operations.
1 month agoComplianceFederal Watchdog Says MSHA Unprepared for Simultaneous Mine Emergencies
A Department of Labor inspector general report finds MSHA may lack the preparedness to handle multiple mine emergencies at once, citing outdated guidance, equipment gaps, and training deficiencies across the agency.
2 months agoComplianceAggregates Leaders Flag MSHA Changes and Highway Bill Timing at 2026 Pit & Quarry Roundtable
Industry executives gathered in Naples, Florida to discuss MSHA regulatory developments, infrastructure funding, and market conditions affecting the aggregates sector.
4 months 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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