IDLH (Immediately Dangerous To Life and Health)

A flammable hydrocarbon fuel—primarily propane or butane—stored under pressure and commonly used onsite for heating, cutting, and equipment operation. Subcontractors handling LPG must comply with Transport Canada and provincial regulations for storage, transport, and handling. Proper training and certifications are typically required before field crews can work with LPG systems.

Official documentation submitted to regulatory bodies before starting work on a site. Subcontractors may be responsible for obtaining specific trade or activity permits. Delays in filings can halt work and affect project timelines and invoicing.

A legally binding agreement between a regulator and a company to correct violations without going to court. Subcontractors on affected sites may face work stoppages, added inspections, or new compliance requirements. Review consent orders tied to a client site before mobilising.

A formal written authorisation required before performing any work that produces heat, sparks, or open flame on a job site. Subcontractors must obtain this permit before welding, cutting, or grinding near flammable materials. Site supervisors issue and sign off on these permits, and work must stop if conditions change.

A formal engineering assessment that determines whether aging or damaged equipment is safe to keep operating. Subcontractors may be required to conduct or document FFS evaluations before resuming work on pressure vessels, pipelines, or structural components. Results directly affect your scope of work, liability exposure, and project timelines.

The FAR governs purchasing rules for U.S. federal contracts, including subcontractor requirements on government-funded projects. If your prime contractor holds a federal contract, FAR clauses flow down and bind your work. These rules cover pricing, record-keeping, audits, and labour standards you must follow.

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