Tolling Agreement

A formal written amendment to an existing contract that modifies scope, cost, or schedule. Subcontractors should never perform out-of-scope work without a signed change order. Undocumented changes are a leading cause of unpaid invoices and disputes.

A charge issued by an operator or general contractor to a subcontractor for costs incurred due to defective work, delays, or failure to meet contractual obligations.

The queue of pending bids and quotes a subcontractor has not yet completed or submitted to clients. A large estimating backlog can delay securing new work and strain small estimating teams. Tracking it helps prioritise high-value opportunities and allocate quoting resources effectively.

A sudden, unscheduled shutdown of equipment or operations that halts field work without prior notice. For subcontractors, it often triggers standby time disputes and delayed milestone billing. Contracts should clearly define compensation terms for crew and equipment during unplanned downtime.

A contract clause allowing the hiring company to end a service agreement before the scheduled completion date. Subcontractors may receive a penalty payment, but it is rarely full contract value. Always clarify demobilisation costs and notice periods before signing.

A U.S. securities regulation allowing large private companies to raise capital without a public stock listing. For subcontractors, it signals a major client may have access to significant private funding. This can affect contract stability and payment capacity on large projects.

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