FAR 19.5—Subpart 19.5

General.

FAR 19.501 explains the basic framework for using small business set-asides and small business reserves in federal acquisitions. It covers what a set-aside is, what a reserve is, when each may be used, who decides whether to use them, the role of SBA procurement center representatives (PCRs) and agency small business offices, when contracting officers must make acquisitions available for SBA review, what must be included in solicitations, the fair market price limitation, and where to look for the limitations on subcontracting and nonmanufacturer rule. In practice, this section is the starting point for deciding whether an acquisition should be competed only among small businesses, partially set aside, or reserved for small business participation under a multiple-award structure. It also makes clear that the contracting officer retains the decision authority, but must consider SBA and agency small business input. For contractors, this section matters because it determines whether they can compete, what size standards apply, and whether post-award performance restrictions may apply. For contracting officers, it is a required screening and documentation step that affects acquisition planning, market research, solicitation drafting, and award decisions.

Setting aside acquisitions.

Reserves.

FAR 19.503 explains when and how contracting officers may use a "reserve" in a multiple-award procurement conducted under full and open competition to ensure small business participation. It covers the authority to reserve one or more contract awards for eligible small business concerns identified in FAR 19.000(a)(3), the market-research findings required before using a reserve, and the difference between a reserve and a total or partial set-aside. The section also addresses what a reserve can produce in practice: awards to one or more qualifying small businesses, or in a bundled multiple-award procurement, awards to small businesses using a Small Business Teaming Arrangement. It further clarifies that the specific socioeconomic or program eligibility rules in Part 19 still apply, and it distinguishes contract-level reserves from order-level set-asides by stating that the limitations on subcontracting and the nonmanufacturer rule do not apply to reserves at the contract level, but do apply to certain set-aside or direct-order actions under FAR 19.504(c)(1)(ii). In practice, this section gives contracting officers a flexible tool when a full small-business set-aside or partial set-aside is not workable, while still preserving small business opportunities in multiple-award contracting.

Orders under multiple-award contracts.

FAR 19.504 explains how contracting officers may place orders under multiple-award contracts when small business participation is involved. It covers three major situations: orders under multiple-award contracts generally, orders under total or partial small business set-aside contracts, and orders under reserves. It also addresses when order set-asides are discretionary versus mandatory, how the simplified acquisition threshold affects the choice of small business program, and the need to follow both small business eligibility rules and the ordering procedures for the underlying contract vehicle. In practice, this section tells contracting officers how to decide whether an order can be competed among all holders, limited to certain small business concerns, or issued directly to a single small business awardee. It matters because the ordering decision can affect competition, compliance with small business goals, and whether the order is properly reserved for a particular socioeconomic program. Contractors need to understand it because their ability to compete for an order depends on whether they hold the right underlying contract and whether the order is set aside, reserved, or unrestricted.

Limitations on subcontracting and nonmanufacturer rule.

FAR 19.505 addresses two closely related small business compliance concepts: the limitations on subcontracting and the nonmanufacturer rule. It explains when these requirements apply to small business set-asides, sole-source awards, HUBZone preference awards, and certain set-aside orders under the small business programs, including awards under FAR subparts 19.8, 19.13, 19.14, and 19.15. It then sets the performance limits for different types of contracts—services, supplies/products, general construction, and special trade construction—by limiting how much of the government-paid amount may be subcontracted to firms that are not similarly situated entities. The section also establishes when compliance must be measured, such as by the end of the base term, option periods, or order performance period, depending on how the award is structured. In addition, it explains the nonmanufacturer rule for supply acquisitions, including the requirements for nonmanufacturers and kit assemblers, the definition of the manufacturer, and the possibility of SBA waivers. In practice, this section is central to ensuring that small business awards actually benefit small businesses through meaningful performance, while still allowing appropriate subcontracting and supply-chain flexibility.

Documentation requirements.

FAR 19.506 explains when the contracting officer must create written documentation supporting small-business set-aside decisions and related acquisition choices. It covers two main documentation duties: first, explaining why a contract was not totally set aside for small business under FAR 19.502-2; and second, explaining why a multiple-award contract was not partially set aside, not reserved, and did not allow set-asides of orders when those small-business authorities could have been used. It also requires the contracting officer, when applicable, to document why the agency did not follow recommendations from the Office of Small and Disadvantaged Business Utilization (OSDBU) Director, or for DoD the Office of Small Business Programs Director or designee, regarding whether the acquisition should be awarded under FAR subparts 19.5, 19.8, 19.13, 19.14, or 19.15. The section further clarifies that this documentation is not required when award is anticipated to a small business under those subparts. In practice, this rule creates a record showing that the agency considered small-business participation options and explains any decision not to use them, which is important for accountability, internal review, protests, and compliance with small-business policy goals.

Solicitation provisions and contract clauses.

FAR 19.507 tells contracting officers which small-business-related solicitation provisions and contract clauses must be included when a procurement is set aside, reserved, or otherwise structured to support small business participation. This section covers total small business set-asides, partial small business set-asides, the Limitations on Subcontracting clause, notice of set-aside of orders under multiple-award contracts, small business reserves, direct orders under reserves, and the Nonmanufacturer Rule clause. It also addresses special treatment for multiple-award contracts, including when orders may later be set aside for small business concerns, and it cross-references situations involving the HUBZone price evaluation preference and the inclusion of fair participation incentives (FPI) under the cited rules. In practice, this section is a clause-mapping rule: it tells the contracting officer exactly what to put in the solicitation and resulting contract so the small business program requirements are enforceable from the start. It matters because missing or misapplying these provisions can undermine set-aside eligibility, subcontracting compliance, order-level competition, and post-award enforcement.