DAWIA Contracting Exam Prep 2026 – Complete Practice Test

Time-and-Materials contracts are used when the exact amount of work can’t be reliably estimated. They pay for actual labor time at pre-set, fixed hourly rates and reimburse actual costs for materials, typically with some form of contractor profit built into the labor rates or as a separate fee. Crucially, there is a not-to-exceed ceiling price that caps total costs, giving the government a safeguard if the work expands or takes longer than expected. This combination—labor time billed at fixed rates, materials at actual cost, and a ceiling—best captures how T&M arrangements are structured.

That’s why this description fits: it emphasizes labor hours at fixed rates, materials at cost, and a cost ceiling. The alternative descriptions would imply a fixed-price setup, no profit, or no cost limit, which do not describe how time-and-materials contracts operate.