Which appropriation fund is used primarily for day-to-day operations, covers minor construction and assets/systems/major end-items, and has a 1-year life?

• A. Operations & Maintenance (O&M) or (OMA)
• B. Procurement (OPA)
• C. Military Construction (MILCON)
• D. Research, Development, Testing & Evaluation (RDT&E)

Answer: (A)

Operations & Maintenance funds are meant to keep daily military operations running and to sustain the force. They cover ongoing activities like routine maintenance, training, logistics, and the support needed to keep assets and systems ready for use. Because these funds are annual, they’re obligated and expended within a single fiscal year, which makes them ideal for day-to-day needs and for minor construction or upkeep of existing assets and systems. They aren’t used for buying major weapons or undertaking large, long-term construction projects, which fall to Procurement or MILCON, or for development work, which is funded by RDT&E. So for day-to-day operations with a one-year lifecycle, Operations & Maintenance is the best fit.