CPPB Domain II Sourcing Practice Test 2026 - Free Sourcing Practice Questions and Study Guide

MRO describes Maintenance, Repair and Operating supplies—items used to keep facilities and equipment running on a day-to-day basis. These are typically consumables or common components that support ongoing operations, not part of the finished product and not large-capital investments. Think lubricants, cleaning supplies, light bulbs, safety gear, hand tools, fasteners, tape, batteries, and office supplies. Labeling purchases as MRO helps organizations manage stocking, supplier contracts, and inventory because this category is usually high-volume and requires steady, reliable replenishment. The other phrases don’t reflect this standard procurement category, so they aren’t appropriate labels for these commodities.