How do federal set-asides work, and when must contracting officers use them under FAR Part 19?

Details / How it works

FAR Part 19 implements small business acquisition preferences through set-asides, which reserve an acquisition exclusively for eligible small business concerns.

Automatic set-aside (below simplified acquisition threshold): Each acquisition of supplies or services with an anticipated dollar value above the micro-purchase threshold but not exceeding the simplified acquisition threshold shall be set aside exclusively for small business concerns when there is a reasonable expectation that offers will be obtained from at least two responsible small business concerns and award will be made at fair market prices (FAR 19.502-2(a)).

Rule of two (above simplified acquisition threshold): For acquisitions above the simplified acquisition threshold, the contracting officer shall set aside the acquisition for small business 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 (FAR 19.502-2(b)). Before a small business set-aside, the contracting officer must first consider the socioeconomic programs — 8(a), HUBZone, SDVOSB, and WOSB set-asides. FAR 19.203 establishes there is no order of precedence among those four programs.

Partial set-asides and multiple-award contract reserves are addressed at FAR 19.502-3 and 19.502-4.

Sole-source authorities: Each socioeconomic program carries its own sole-source authority with dollar conditions in its FAR subpart (e.g., 8(a) at FAR 19.808-1, HUBZone at FAR 19.1306, SDVOSB at FAR 19.1406, WOSB/EDWOSB at FAR 19.1506).

Numbers & thresholds

The exact dollar amounts are defined in FAR 2.101 and are not specified in the provided context.

Exceptions & edge cases

Partial set-asides (FAR 19.502-3): When only part of an acquisition is reserved for small businesses, the contracting officer may use a partial set-aside.

Multiple-award contract reserves (FAR 19.502-4): For multiple-award contracts, the contracting officer may reserve one or more award positions for small businesses.

Sole-source authorities: Each socioeconomic program has its own sole-source authority, allowing awards without full competition under specific dollar conditions (e.g., 8(a) sole source up to $8.5M for manufacturing / $5.5M for other needs; HUBZone, SDVOSB, WOSB each have their own limits).

No program precedence (FAR 19.203): The four socioeconomic programs (8(a), HUBZone, SDVOSB, WOSB) have no order of precedence. The contracting officer may choose any program that is appropriate for the acquisition.

Limitations on subcontracting (FAR 52.219-14): Set-aside awards carry limitations on how much work may be subcontracted to firms that are not similarly situated (e.g., 50% for services/supplies, 85% for general construction), but these are enforced post-award and do not alter the set-aside decision itself.