A formal process for documenting and approving any deviation from original scope, equipment, or procedures on a worksite. Subcontractors must follow the prime contractor's MOC process before making field changes. Skipping this step can void your contract or expose your crew to liability.
Management of Change
Related Terms
Rope Access
ComplianceA technique where certified technicians use ropes and harnesses to reach elevated or confined work areas without scaffolding. Common in tank inspections, flare stack maintenance, and structural repairs. Subcontractors must ensure crews hold valid IRATA or SPRAT certifications before mobilising.
Medium-Voltage
ComplianceElectrical systems operating between 1 kV and 35 kV, commonly found on industrial sites and oil and gas facilities. Subcontractors working near MV equipment typically require specialised certifications and strict site safety compliance. Always confirm voltage classifications before mobilising electrical crews.
ELG (Effluent Limitations Guidelines)
ComplianceFederal regulations setting discharge limits for wastewater and pollutants released from industrial worksites. Subcontractors handling fluid waste, drilling muds, or site runoff must meet ELG thresholds or face penalties. Non-compliance can halt operations and void contracts.
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.
Chemical Containment
CompliancePhysical barriers and systems used to prevent hazardous chemicals from spilling into the surrounding environment on a job site. Subcontractors are often responsible for supplying and maintaining containment berms, drip trays, and secondary liners. Failure to meet containment standards can result in site removal or regulatory fines.
IDMS (Inspection Data Management System)
ComplianceA digital platform used to capture, store, and track inspection records for equipment, structures, or pipelines. Subcontractors often upload field findings directly into a client's IDMS. Accurate data entry is critical, as records feed into compliance reporting and work order approvals.
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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