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Short answer
Category management is the business practice of buying common goods and services as an enterprise, rather than unit by unit, to eliminate redundancies, increase efficiency and deliver more value. That wording comes from the US Office of Management and Budget (OMB), whose 2019 memorandum M-19-13 sets out the definition and the spend tiers used on this page. Its spend-maturity tiers also give a lab or clinic buyer a practical checklist for describing how organized their own purchasing is.
Definition and scope
OMB Memorandum M-19-13, Category Management: Making Smarter Use of Common Contract Solutions and Practices (March 20, 2019), states that “the term ‘category management’ refers to the business practice of buying common goods and services as an enterprise to eliminate redundancies, increase efficiency, and deliver more value and savings from the Government’s acquisition programs.”
Three ideas sit inside that sentence. First, common spend: items many buyers need, as opposed to items only one program needs. Second, enterprise buying: one organization acting together instead of dozens of separate purchasers. Third, categories: spend is grouped into families of related goods and services, and each family is managed as a unit.
The formal framework described here is federal. It is not a general standard for universities, hospitals or laboratories, so it works here as a reference model, not as a rule that applies to them.
How category management is used in practice
M-19-13 describes teams of experts in each category of spending who help agencies increase their use of common contract solutions and practices by sharing market intelligence, government and industry best practices, prices paid data and other information. The Category Management Leadership Council (CMLC) is named in the memorandum as part of the governance structure.
The Acquisition.gov category management page (page footer dated 10/26/2026) says the federal structure has 10 common spend categories plus nine additional defense-centric ones, and that the CMLC and OMB use this structure to create category management strategies.
The GSA and Acquisition.gov Category Management Buying Guide (Beta Version 0.1, October 30, 2025) shows how this works for one category. For Medical, it separates what counts as common from what does not:
| Scope | Medical category description in the Buying Guide |
|---|---|
| Common | Standard pharmaceuticals, healthcare services, and common medical equipment or supplies |
| Specialized (outside common scope) | Specialized or customized pharmaceuticals, medical equipment, supplies, or services used exclusively by the military or certain federal agencies |
The same guide says the Medical Category team has focused on having procurement follow a priority order of contract vehicles: (1) Best in Class contracts, (2) Federal Supply Schedule (FSS) contracts, and (3) other Spend Under Management tier contracts, with preference for small business utilization. It lists Medical vehicle examples including the Medical Surgical Prime Vendor Program (MSPV) as a Tier 3 Best-in-Class vehicle, the Defense Logistics Agency Medical Electronic Catalog Program (ECAT), Medical Equipment and Supplies (Schedule 65 II A) and Medical Laboratory Testing and Analysis Services (Schedule 621 II) as Tier 2 vehicles. Medical acquisition is governed by Government-Wide Category Management oversight and additionally by the VA/DoD Joint Executive Committee, the Healthcare Executive Committee, and the Acquisition and Medical Materiel Management Working Group.
Spend Under Management tiers
M-19-13 measures progress with Spend Under Management (SUM), which sorts spending into four tiers. Read as a ladder, it describes how coordinated a buyer’s purchasing is.
| Tier | What M-19-13 says it covers |
|---|---|
| Tier 0 | Unaligned, decentralized spend |
| Tier 1 | Agency-wide managed solutions with mandatory-use policies |
| Tier 2 | Government-wide, multi-agency solutions that are not Best in Class |
| Tier 3 | Government-wide Best in Class (BIC) solutions |
The memorandum reports that as of the end of FY 2018, 56% of addressable common spending was unaligned (Tier 0).
A checklist a lab or clinic buyer can borrow
The tiers are federal, but the questions they imply are general. A buyer reviewing their own consumables and equipment spend can ask, for each family of items: is it bought ad hoc by individual labs (the Tier 0 pattern)? Is there an institution-wide contract with a mandatory-use policy (Tier 1)? Does it ride on a contract shared with other organizations (Tier 2)? Is it on a contract that has been designated the best available vehicle by a recognized body (Tier 3)? This mapping is an analogy built on the M-19-13 structure, not a federal requirement for non-federal buyers.
Where it matters for labs, clinics and supply decisions
The Medical category in the Buying Guide shows that routine medical equipment and supplies are treated as a common category, while specialized items are carved out. That distinction is the first decision in any category approach: deciding which items are common enough to manage together and which are specialized enough to stay with the program that needs them.
For lab and clinic staff, it also explains why purchasing vocabulary overlaps. A group purchasing organization is one vehicle for shared contracts, and vendor-managed inventory is one way of handling replenishment once a supplier is selected. A comparison of physician buying groups and hospital GPOs and one of volume discount tiers and rebate programs cover contract mechanics that sit underneath a category strategy.
The savings number needs care. M-19-13 cites an average cost avoidance of at least 10-15% and calls it a conservative estimate. It is a federal figure for federal acquisition programs and is not evidence of what a laboratory or clinic would achieve.
Common misunderstandings
- It is not the same as supply chain management. The guide to supply chain management covers the end-to-end flow of goods; category management is the decision about how a defined group of purchases is organized and bought.
- It is not the same as joining a group purchasing organization. In the federal tiers, agency-wide contracts, multi-agency contracts and Best in Class contracts are all forms of managed spend. A single membership does not define the practice.
- Federal tier labels are not universal. Tier 0 to Tier 3 are OMB terms. Other organizations use their own vocabulary.
- The percentages are not benchmarks for other buyers. The 56% unaligned figure is FY 2018 federal data, and the 10-15% cost avoidance figure is a federal estimate.
Frequently asked questions
What is category management in simple terms?
It is buying common goods and services as one enterprise instead of as many separate units, to remove redundancy and get more value. OMB Memorandum M-19-13 defines it this way for the US federal government.
What is a spend category?
A spend category is a group of related goods and services that is managed together. The federal structure has 10 common spend categories plus nine additional defense-centric ones, 19 in total, and Medical is one of them.
How is category management different from supply chain management?
Supply chain management covers the whole flow of goods from supplier to user. Category management is narrower: it decides how a defined group of purchases is bought and managed.
Does category management mean joining a group purchasing organization?
No. A group purchasing organization is one possible purchasing vehicle. Category management is the practice of organizing and managing spend; the federal tiers list agency-wide, multi-agency and best-in-class contracts as different levels of that management.
Do the federal savings figures apply to a laboratory?
No. The 10-15% cost avoidance estimate in M-19-13 is a federal estimate, described by the memo as conservative, and it should be read in that context only.
Sources
- Office of Management and Budget, Memorandum M-19-13, “Category Management: Making Smarter Use of Common Contract Solutions and Practices,” March 20, 2019. whitehouse.gov/wp-content/uploads/2019/03/M-19-13.pdf (checked 2026-10-29).
- GSA and Acquisition.gov, “Category Management Buying Guide,” Beta Version 0.1, October 30, 2025. acquisition.gov category management buying guide (PDF) (checked 2026-10-29).
- Acquisition.gov, “Category Management.” acquisition.gov/content/category-management (page footer dated 10/26/2026; checked 2026-10-29).
