FAR 19.502-2—Total small business set-asides.
Plain-English Summary
FAR 19.502-2 establishes the core rule for total small business set-asides in federal acquisitions. It covers when supplies and services must be reserved for small business, the dollar thresholds that trigger the rule, the “rule of two” standard for deciding whether a set-aside is required, what happens when only one acceptable small business offer is received, and what to do when no acceptable small business offers are received. It also explains that acquisitions above the simplified acquisition threshold must be set aside only when there is a reasonable expectation of receiving offers from at least two responsible small business concerns at fair market prices, and it points contracting officers to FAR 19.203 for additional socioeconomic considerations. The section further clarifies that past acquisition history and market research matter, but are not the only factors in the analysis. For research and development acquisitions, it adds a special requirement to consider whether small businesses can provide the best scientific and technological sources consistent with the agency’s needs for cost, performance, and schedule. In practice, this section is the main decision point for whether an acquisition is competed as a total small business set-aside or left unrestricted, and it drives both market research and acquisition strategy.
Key Rules
Set Aside Below SAT
For supplies or services above the micro-purchase threshold but not over the simplified acquisition threshold, the acquisition shall be set aside for small business unless the contracting officer determines there is not a reasonable expectation of receiving offers from two or more responsible small business concerns that are competitive in terms of fair market prices, quality, and delivery.
Rule of Two Above SAT
For acquisitions over the simplified acquisition threshold, the contracting officer must set aside the acquisition for small business when there is a reasonable expectation of receiving offers from at least two responsible small business concerns and of making award at fair market prices.
No Set-Aside Without Reasonable Expectation
Total small business set-asides may not be made unless the contracting officer has a reasonable expectation that the required level of small business competition and fair pricing will occur. If that expectation is not present, a total set-aside is not appropriate.
One Acceptable Offer
If a set-aside solicitation produces only one acceptable offer from a responsible small business concern, the contracting officer should make award to that firm. The rule does not require cancellation merely because only one acceptable offer was received.
No Acceptable Offers
If no acceptable offers are received from responsible small business concerns, the set-aside must be withdrawn and, if the requirement is still valid, the acquisition must be resolicited on an unrestricted basis.
Market Research Is Not Exclusive
Past acquisition history and market research are important in deciding whether the rule of two is met, but they are not the only factors. The contracting officer must consider the full market picture before deciding whether a set-aside is justified.
R&D Special Standard
For research and development acquisitions, the contracting officer must also have a reasonable expectation that small businesses can provide the best scientific and technological sources consistent with the agency’s needs for the best mix of cost, performance, and schedule.
Refer to 19.203
Before setting aside an acquisition under this section, the contracting officer must refer to FAR 19.203(b) for acquisitions at or below the simplified acquisition threshold and FAR 19.203(c) for acquisitions above it, because those provisions address additional small business and socioeconomic considerations.
Responsibilities
Contracting Officer
Determine whether the acquisition meets the threshold and market conditions for a total small business set-aside; conduct and document adequate market research; apply the rule of two; consider fair market pricing, quality, delivery, and responsibility; refer to FAR 19.203 as required; award to a single acceptable small business offeror when appropriate; withdraw the set-aside and resolicit unrestricted if no acceptable small business offers are received.
Small Business Concerns
Submit offers when eligible and capable of meeting the requirement; demonstrate responsibility and competitiveness in price, quality, and delivery; for R&D opportunities, show capability to provide strong scientific and technological solutions aligned with the agency’s needs.
Agency
Support acquisition planning and market research; ensure contracting personnel apply the small business set-aside rules consistently; maintain policies and oversight that encourage proper use of total small business set-asides and compliance with FAR 19.203 and related provisions.
Practical Implications
This section is one of the most important small business decision rules in federal procurement: if the rule of two is met, the acquisition generally must be set aside, not merely considered for set-aside.
Contracting officers should not rely only on prior buys or a quick market scan; they need enough evidence to support a reasonable expectation of two responsible small business offers at fair market prices.
A single acceptable small business offer on a set-aside does not automatically mean failure; award can still be made to that offeror if it is responsible and acceptable.
If no acceptable small business offers are received, the set-aside cannot simply be left in place; it must be withdrawn and, if the need remains, the requirement must be resolicited unrestricted.
R&D acquisitions require extra care because the analysis is not just about business size and price, but also whether small businesses can provide the best scientific and technological sources for the agency’s technical and schedule needs.
Official Regulatory Text
(a) Before setting aside an acquisition under this paragraph, refer to 19.203 (b). Each acquisition of supplies or services that has an anticipated dollar value above the micro-purchase threshold, but not over the simplified acquisition threshold, shall be set aside for small business unless the contracting officer determines there is not a reasonable expectation of obtaining offers from two or more responsible small business concerns that are competitive in terms of fair market prices, quality, and delivery. If the contracting officer receives only one acceptable offer from a responsible small business concern in response to a set-aside, the contracting officer should make an award to that firm. If the contracting officer receives no acceptable offers from responsible small business concerns, the set-aside shall be withdrawn and the requirement, if still valid, shall be resolicited on an unrestricted basis. The small business set-aside does not preclude the award of a contract as described in 19.203 . (b) Before setting aside an acquisition under this paragraph, refer to 19.203 (c). The contracting officer shall set aside any acquisition over the simplified acquisition threshold for small business participation when there is a reasonable expectation that- (1) Offers will be obtained from at least two responsible small business concerns; and (2) Award will be made at fair market prices. Total small business set-asides shall not be made unless such a reasonable expectation exists (see 19.502-3 for partial set-asides). Although past acquisition history and market research of an item or similar items are always important, these are not the only factors to be considered in determining whether a reasonable expectation exists. In making research and development small business set-asides, there must also be a reasonable expectation of obtaining from small businesses the best scientific and technological sources consistent with the demands of the proposed acquisition for the best mix of cost, performances, and schedules.