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Compliance Glossary Term

Tier 2 Diesel Engine

A diesel engine meeting EPA (Environmental Protection Agency) Tier 2 emissions standards, regulating nitrogen oxide and particulate output. Many job sites and municipalities restrict or ban Tier 2 equipment in favour of cleaner Tier 4 units. Subcontractors should verify equipment tier requirements before mobilising to avoid costly compliance issues or equipment swaps.

Related Terms

Energize

Compliance

To bring electrical equipment or a system into a live, powered state on a job site. Subcontractors must confirm proper authorisation and lockout/tagout clearance before energizing any equipment. Premature energizing is a leading cause of worksite incidents and contractor liability.

Walking-Working Surfaces Standard

Compliance

A regulatory standard governing slip, trip, and fall hazards on job sites. Subcontractors must ensure floors, platforms, ladders, and elevated surfaces meet inspection and guarding requirements. Non-compliance can result in stop-work orders or liability exposure on client sites.

Ladder Safety System

Compliance

A fixed assembly of rails, brackets, and a climbing sleeve that prevents a worker from falling off a vertical ladder. Subcontractors are often required to install or inspect these systems before crews access elevated structures. Compliance with provincial fall-protection codes is typically a condition of site entry.

Fixed Ladder

Compliance

A permanently mounted ladder attached to a structure, vessel, or facility used to access elevated work areas. Subcontractors must ensure fixed ladders on their worksites meet provincial and federal safety standards before crews use them. Inspect for damage, proper cage guards, and fall arrest anchor points before starting elevated work.

Api 510 (american Petroleum Institute Standard 510)

Compliance

An inspection code governing the maintenance and repair of in-service pressure vessels. Subcontractors performing vessel work must often comply with API 510 requirements and use certified inspectors. Non-compliance can result in work stoppages or contract disqualification.

NDT (Non-destructive Testing)

Compliance

Inspection methods used to evaluate welds, pipelines, and structures without damaging them. Common NDT techniques include ultrasonic, radiographic, and magnetic particle testing. Subcontractors often need certified NDT technicians on crew to meet client and regulatory requirements.

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