MOC (Management of Change)

A work-related injury or illness that meets specific criteria requiring formal logging under OSHA regulations, including cases involving days away from work, restricted duties, medical treatment beyond first aid, or loss of consciousness — a metric that directly affects a subcontractor's safety record and can impact their eligibility for future contracts with operators and prime contractors.

A measure combining air temperature and humidity to reflect how hot conditions actually feel to workers. Subcontractors use it to assess heat stress risk and trigger mandatory rest breaks or work stoppages. Most site safety plans reference heat index thresholds to stay compliant with occupational health regulations.

A safety procedure requiring energy sources on equipment to be physically isolated and locked before maintenance work begins. Subcontractors must follow site-specific lockout procedures or risk removal from the worksite. Verify your crew holds valid lockout/tagout certification before mobilising.

The practice of properly restraining equipment, materials, and tools on vehicles during transport to prevent shifting or falling. Subcontractors are legally responsible for securing their own loads under provincial and federal transport regulations. Non-compliance can result in fines, licence suspensions, or liability for road incidents.

A directive to halt all work on-site, issued by the prime contractor or owner — most often to address an immediate safety concern or incident. Crews stop billable activities until the issue is resolved and a formal all-clear is issued; depending on contract terms, standby rates may or may not apply. Stand downs can be site-wide or scoped to a specific trade or work area.

Legal safeguards preventing retaliation against workers who report safety violations, fraud, or regulatory breaches. Subcontractors and field personnel cannot be fired, demoted, or penalised for reporting misconduct to regulators. Protection applies even when reporting against a prime contractor or client company.

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