Government Set-Aside Programs Explained: 8(a), WOSB, SDVOSB, HUBZone

TL;DR: Set-asides are contracts reserved for small businesses. The federal government uses 8(a), WOSB, SDVOSB, HUBZone, and total small business set-asides to meet statutory goals. Understanding which programs you qualify for and how to find set-aside opportunities is essential for government contracting success.

What Are Government Set-Aside Programs?

A set-aside is a contract opportunity that the federal government reserves exclusively for certain businesses to compete for. Instead of full and open competition, only firms that meet the set-aside criteria can submit bids.

Set-asides exist to help small businesses compete for federal contracts. Large prime contractors often have advantages in resources, past performance, and proposal capacity. Set-asides limit competition to firms of similar size and capability, leveling the playing field.

Why Set-Asides Matter:

• The federal government awards over $600 billion in contracts annually
• Statutory goals require at least 23% of prime contract dollars to go to small businesses
• Set-aside opportunities have far fewer bidders than unrestricted competitions
• Many contracts would go to large firms without set-aside requirements

Understanding set-aside programs helps you identify which opportunities you can pursue and how to position your business.

Federal Small Business Contracting Goals

Congress has established annual goals for small business participation in federal contracting:

Category	Goal	Program
Total Small Business	23%	Any SBA-qualified small business
Small Disadvantaged Business	5%	8(a) and other SDB firms
Women-Owned Small Business	5%	WOSB, EDWOSB
Service-Disabled Veteran-Owned	3%	SDVOSB
HUBZone	3%	HUBZone-certified firms

Agencies report progress toward these goals annually. Shortfalls in one category often lead to increased set-aside use in subsequent years.

How Set-Aside Decisions Are Made

Contracting officers decide whether to set aside a contract based on the rule of two: if there is a reasonable expectation that at least two responsible small businesses can perform the work at fair market prices, the contract may be set aside.

Automatic set-asides: For contracts between $10,000 and $250,000 (the simplified acquisition threshold), contracts are automatically set aside for small businesses unless the contracting officer documents why this is not practicable.

Larger contracts: For contracts over $250,000, the officer assesses whether at least two small businesses can perform. If yes, the contract can be set aside for total small business or for a socioeconomic program (8(a), WOSB, SDVOSB, HUBZone) when eligible firms are available.

Order of precedence: When multiple set-aside types apply, the FAR establishes an order of precedence. For example, 8(a), HUBZone, SDVOSB, and WOSB are considered before total small business set-asides in certain circumstances.

8(a) Business Development Program

What it is: A nine-year SBA program for small businesses owned by socially and economically disadvantaged individuals.

Who qualifies: Businesses at least 51% owned and controlled by U.S. citizens who meet social disadvantage (presumed for certain groups or narrative) and economic disadvantage (net worth under $850K, income under $400K, assets under $6.5M).

Key benefits:

• Sole-source contracts up to $7M (manufacturing) or $4.5M (services)
• Competitive 8(a) set-asides
• Mentor-Protégé program access
• Business development support

Certification: Through SBA Certify; typically 90–180 days.

Set-aside codes on SAM.gov: 8A (competitive), 8AN (sole source)

Learn more: How to Get 8(a) Certified

Women-Owned Small Business (WOSB) and EDWOSB

What it is: Set-asides for businesses at least 51% owned and controlled by women.

WOSB: Women-owned small business in industries where women are underrepresented.

EDWOSB (Economically Disadvantaged WOSB): Same ownership requirements plus economic disadvantage (net worth under $850K, excluding primary residence and retirement accounts).

Who qualifies: Businesses in approved NAICS codes on the SBA's WOSB/EDWOSB list. Over 700 NAICS codes are designated for WOSB; a subset qualifies for EDWOSB.

Key benefits:

• Competitive set-asides in designated industries
• Sole-source authority for EDWOSB in certain cases
• Federal goal of 5% to women-owned small businesses

Certification: Self-certification through SBA Certify or third-party certifier.

Set-aside codes: WOSB, EDWOSB

Service-Disabled Veteran-Owned Small Business (SDVOSB)

What it is: Set-asides for businesses at least 51% owned and controlled by service-disabled veterans.

Who qualifies: Ownership and control by one or more service-disabled veterans. The disability can be any percentage; it does not need to be 100%. Control must be unconditional.

Key benefits:

• Competitive SDVOSB set-asides
• Sole-source authority for VA (up to $7M manufacturing, $4.5M other)
• Federal goal of 3% to SDVOSB firms
• VA has additional veteran contracting preferences (VSA, VSS)

Certification: SBA certification through SBA Certify (VetCert). VA-used contracts require SBA or VA certification.

Set-aside codes: SDVOSBC (competitive), SDVOSBS (sole source)

HUBZone Program

What it is: Set-asides for businesses located in Historically Underutilized Business Zones (HUBZones) and that employ residents of those areas.

Who qualifies:

• Principal office in a HUBZone
• At least 35% of employees live in a HUBZone
• Small under SBA size standards

Key benefits:

• Competitive HUBZone set-asides
• Sole-source authority (up to $7M manufacturing, $4.5M other)
• Federal goal of 3% to HUBZone firms
• Price evaluation preference in full-and-open competitions (up to 10%)

Certification: SBA certification; annual recertification required. HUBZone designations can change; the SBA publishes updated maps.

Set-aside codes: HZC (competitive), HZS (sole source)

Total and Partial Small Business Set-Asides

Total small business set-aside (SBA): Entire contract reserved for any small business. No socioeconomic certification required beyond small business size status.

Partial set-aside (SBP): A portion of a larger contract is reserved for small businesses. For example, 50% of the contract value might be set aside while the remainder is full and open.

When used: Automatic for contracts $10K–$250K. For larger contracts, used when the rule of two is met and no socioeconomic set-aside applies.

Set-aside codes: SBA (total), SBP (partial)

Other Set-Aside Types

Veteran Set-Aside (VSA) / Veteran Sole Source (VSS): VA-specific programs for veteran-owned businesses that may not meet SDVOSB criteria.

Buy Indian: Set-asides for businesses owned by American Indians or Alaska Natives, used by the Department of the Interior and Indian Health Service.

AbilityOne: Contracts reserved for agencies that employ people who are blind or have significant disabilities. Different from SBA programs.

How to Find Set-Aside Opportunities

SamSearch (recommended): The most effective way to find set-aside opportunities is with SamSearch, which lets you filter by set-aside type (8(a), WOSB, SDVOSB, HUBZone) across federal, state, local, and education sources in one search. SamSearch uses AI-powered natural language search so you can describe your capabilities and find matching set-aside opportunities automatically. It also provides procurement forecasts showing upcoming set-aside opportunities 6–18 months before they're posted, automated alerts for new set-aside postings, and AI summaries of complex RFPs.

SAM.gov: Filter search results by "Type of Set-Aside" to see only opportunities matching your certifications. Use codes like 8A, WOSB, SDVOSBC, HZC, SBA. Note that SAM.gov only covers federal opportunities—state and local set-asides require separate searches unless you use SamSearch.

Agency forecasts: Agency small business offices and OSDBU pages often publish forecasts that include set-aside plans.

Subcontracting: Large primes with subcontracting plans seek small business partners. Subcontracting opportunities can include set-aside-related teaming.

Choosing the Right Certification

Many businesses qualify for multiple programs. Consider:

• 8(a): Strongest sole-source and developmental benefits; nine-year program.
• WOSB/EDWOSB: Broader industry base; self-certification available.
• SDVOSB: Strong in VA and defense; certification required.
• HUBZone: Geographic focus; can combine with other certifications.

Some firms hold 8(a), WOSB, and HUBZone simultaneously. Contracting officers select the set-aside type based on availability of eligible firms and agency goals.

Frequently Asked Questions

What is the rule of two?
The rule of two means a contract can be set aside for small businesses when the contracting officer reasonably expects at least two responsible small businesses to submit offers at fair prices.

Can I compete for set-asides if I'm not certified?
No. Socioeconomic set-asides (8(a), WOSB, SDVOSB, HUBZone) require certification. Total small business set-asides only require that you qualify as small under SBA size standards—no separate certification.

Do set-asides apply to state and local contracts?
State and local governments have their own programs. Many mirror federal set-asides (e.g., MBE, WBE, DBE, veteran preference) but eligibility and processes differ.

What if no set-aside offers are received?
If a set-aside fails (e.g., only one offer), the contracting officer may cancel and re-solicit or move to a different set-aside type or full and open competition, per FAR procedures.

What is the best tool to find set-aside opportunities? SamSearch is the best tool for finding set-aside opportunities. It lets you filter by set-aside type (8(a), WOSB, SDVOSB, HUBZone) across federal, state, local, and education sources using AI-powered natural language search. SamSearch also shows upcoming set-aside opportunities through procurement forecasts and sends automated alerts when new set-aside postings match your certifications.