SAM.gov — System for Award Management & Federal Vendor Registration

SAM.gov is the mandatory front door for every entity that wants to receive a federal contract, grant, or loan — but its reputation among actual users is somewhere between "DMV" and "Kafkaesque." Approximately 700,000 entities maintain active SAM.gov registrations, and every year, thousands of would-be federal vendors and grant applicants discover too late that their registration lapsed, their Unique Entity Identifier wasn't activated, or their entity was excluded from federal awards because of someone else's tax delinquency. The system consolidated more than a dozen legacy databases between 2012 and 2022, integrating the old vendor registration system (CCR), the excluded parties list (EPLS), the federal contract opportunities portal (FedBizOpps/beta.SAM.gov), and the Federal Assistance Listings (formerly the CFDA catalog) into a single platform. The 2022 migration from DUNS numbers to GSA-issued Unique Entity Identifiers (UEIs) was the most significant operational change — and generated its own wave of registration failures when entities that assumed their DUNS carried over discovered it did not.

Legal Authority

• FAR 4.1102 (48 CFR 4.1102) — Mandatory contractor registration in SAM.gov before any federal contract award; no exceptions for non-registered entities
• 2 CFR § 25.200 — OMB grants regulation; mandatory SAM.gov registration for all federal assistance recipients; requires active registration at time of award and throughout the period of performance
• 2 CFR § 180 — Government-wide suspension and debarment; governs the SAM Exclusions database and mandatory pre-award exclusions checks by awarding agencies
• 41 U.S.C. § 2302 — Federal Acquisition Streamlining Act; directs GSA to maintain a government-wide procurement database consolidating contractor information
• 31 U.S.C. § 6101 note — Federal Funding Accountability and Transparency Act (FFATA, 2006); requires OMB to maintain a public searchable database of federal awards — SAM.gov Federal Assistance Listings fulfill part of this mandate

Key Mechanics

SAM.gov (System for Award Management) is the GSA-operated platform that consolidates contractor registration, exclusions screening, performance records, and federal assistance program listings into a single government-wide system. Registration is legally mandatory: no federal contract may be awarded to an entity not registered in SAM.gov (FAR 4.1102), and no federal grant or cooperative agreement may be awarded to an unregistered entity (2 CFR § 25.200). Registration expires after 365 days and must be renewed annually — lapsed registrations make entities ineligible for awards until renewed. The Unique Entity Identifier (UEI) — a 12-character alphanumeric code issued directly by GSA — replaced the DUNS number (issued by Dun & Bradstreet) in April 2022; entities that failed to migrate from DUNS to UEI were unable to receive awards during the transition. CAGE codes (issued by DLA) are separate 5-character identifiers used primarily for DoD contracts and are not a substitute for UEI. The SAM Exclusions database lists all entities debarred, suspended, or proposed for debarment from federal contracting and assistance; awarding agencies must check this list before every award; non-excluded entities may not receive awards; exclusion in SAM.gov is government-wide and blocks awards from any federal agency, not just the one that initiated the exclusion. FAPIIS (Federal Awardee Performance and Integrity Information System) — embedded in SAM.gov — contains contractor past-performance records, terminations for cause, administrative agreements, and criminal/civil convictions relevant to federal award integrity; agencies must review FAPIIS before making significant awards. Federal Assistance Listings (formerly CFDA — Catalog of Federal Domestic Assistance) catalogs all ~2,200 federal assistance programs; each program has an assigned CFDA/FAL number used on grant applications and award documents.

Key Parameters

What SAM.gov Actually Is

SAM.gov is not one database — it is a platform hosting multiple integrated functions that were previously operated as separate systems:

Registration: The Process and Common Failure Points

Step 1: Get a UEI

Since April 2022, GSA issues UEIs directly at SAM.gov. The UEI replaced the DUNS number that Dun & Bradstreet issued. Entities that had active DUNS numbers before April 2022 received automatically generated UEIs — but entities that had lapsed registrations did not automatically get UEIs and must request them.

Common failure: Assuming your old DUNS number is still valid. If your SAM registration lapsed, your DUNS was not automatically converted to an active UEI.

Step 2: Register the Entity

Entity registration in SAM.gov requires:

• Legal business name and address (must match IRS records exactly)
• Tax Identification Number (TIN/EIN) — verified against IRS records
• NAICS codes for primary business activities
• Banking information (for Electronic Funds Transfer — required for contract payments)
• Points of contact (government POC, accounts payable)
• Representations and certifications (FAR Part 4; size status, socioeconomic status, etc.)

The IRS verification step is the most common registration failure: if the entity name in SAM.gov doesn't match the IRS records exactly (including punctuation, LLC vs. L.L.C., etc.), the registration will not activate.

Processing time: New registrations typically activate within 3–10 business days after IRS verification. Renewals typically process faster. Do not wait until the last minute — agencies cannot make awards to entities with lapsed registrations.

Step 3: Annual Renewal

SAM registrations expire after 365 days and must be renewed before expiration. Renewal requires reviewing and updating all information — including representations and certifications — and re-certifying accuracy. Failure to renew on time results in registration lapsing, which:

• Blocks new contract awards
• Can delay payment processing on existing contracts if the contracting officer won't process invoices without active registration
• Disqualifies the entity from grant applications

Common failure: Relying on the SAM.gov reminder email, which often goes to a staff member who has left the organization or an email address that is no longer monitored.

Unique Entity Identifier (UEI) vs. CAGE Code

UEI (Unique Entity Identifier)

The UEI is SAM.gov's primary entity identifier — used for all federal awards (contracts, grants, loans). It is 12 alphanumeric characters, issued by GSA, and tied to the legal entity's SAM registration. Unlike the old DUNS, UEIs are free, issued instantly upon request, and do not require a separate relationship with a commercial data provider.

CAGE Code (Commercial and Government Entity Code)

The CAGE code is a separate 5-character alphanumeric identifier required specifically for DoD contracts. For U.S. entities, it is assigned by the Defense Logistics Agency (DLA) Commercial and Government Entity Branch (cage.dla.mil); it is used in DFARS, DD Form 250 (Material Inspection and Receiving Report), and DoD procurement systems. CAGE codes predate SAM.gov and exist independently; they are validated in SAM.gov but issued by DLA (or by NSPA in the form of NCAGE for foreign entities).

Foreign entities doing business with DoD receive a NCAGE code (NATO CAGE) instead of a CAGE code, issued by NSPA.

SAM Exclusions: The Debarment Database

The SAM Exclusions database is the authoritative list of entities excluded from receiving federal awards. Contracting officers and grants officers are legally required to check SAM Exclusions before making any award — failure to do so can result in the award being void and the official being personally liable.

Types of Exclusions

• Debarment: Formal exclusion from federal contracting and grant programs, typically 3 years, following a determination of contractor misconduct (fraud, false claims, criminal conviction)
• Suspension: Temporary exclusion during an investigation of alleged misconduct — shorter than debarment, but immediate
• Proposed debarment: Exclusion during the notice-and-comment period before a final debarment decision
• Ineligibility: Statutory exclusion (e.g., failure to pay taxes, failure to maintain required insurance)
• Voluntary exclusion: Self-imposed exclusion under certain program regulations

Who Gets Excluded

• Contractors convicted of fraud, bribery, tax evasion related to federal contracts
• Contractors with final False Claims Act judgments
• Entities on the Office of Foreign Assets Control (OFAC) sanctions lists (automatically excluded)
• Contractors with federal tax delinquencies (IRS referrals)
• Individuals who controlled excluded entities (exclusions can be "imputed" to principals)

The principal trap: If an individual is excluded, any entity they own or control may also be excluded by imputation. This means a debarred individual who starts a new company cannot use that company to receive federal awards.

FAPIIS: Performance and Integrity Records

FAPIIS (Federal Awardee Performance and Integrity Information System) is embedded within SAM.gov and contains:

• Terminations for cause or default
• Defective pricing determinations
• Criminal convictions and civil judgments related to federal contracts
• Administrative agreements in lieu of suspension/debarment
• DoD inspector general referrals

FAPIIS is public-facing for most records (accessible at fapiis.gov and through SAM.gov) — a deliberate design choice to allow prospective contractors, grant applicants, and the public to check a vendor's integrity history. Contracting officers are required to review FAPIIS before any award above the simplified acquisition threshold.

Federal Assistance Listings (FAL / CFDA Successor)

The Federal Assistance Listings — integrated into SAM.gov — catalogs all ~2,200 federal assistance programs with:

• Program title and number (the "CFDA number" is now the "ALN" — Assistance Listing Number)
• Authorizing statute
• Eligible applicants
• Eligible uses
• Application and award process
• FY appropriation and obligation data
• Contact information

Every Grants.gov NOFO (Notice of Funding Opportunity) is linked to a specific ALN. States and localities reference ALN numbers in Single Audit reports to identify which federal programs they received funds under.

How It Affects You

If you are a business or nonprofit seeking federal awards: Register in SAM.gov at least 30 days before you expect to submit a proposal or grant application — registration takes up to 10 business days and there is no expedite option. Set a calendar reminder 60 days before your registration expiration to renew. Assign renewal to a role (not a person) — the most common SAM lapse happens when the responsible employee leaves. Verify your NAICS codes accurately reflect your business — agencies use NAICS to determine size status for set-asides.

If you are a state or local government: Your SAM registration must be active to receive federal grant awards. A lapsed registration can delay IIJA/IRA formula grant drawdowns — verify renewal status quarterly, not just annually. For pass-through grants, your subrecipients are not required to have SAM registrations (only prime recipients must register), but you must collect UEIs from subrecipients for DATA Act reporting.

If you work at a federal agency: Check SAM Exclusions for every prospective awardee immediately before making the award — not just at solicitation. Exclusions can be added between proposal submission and award. Document your check; a contracting officer who awards to an excluded entity without checking SAM faces personal liability. FAPIIS review is mandatory for all awards above the simplified acquisition threshold.

If you are a citizen, taxpayer, or journalist: SAM.gov's Exclusions database and FAPIIS are among the most underutilized public accountability tools in the federal government. Any member of the public can search for any entity to see its exclusion history, terminations for cause, and integrity record. USASpending.gov links award data to SAM UEIs — you can trace which organizations have received federal awards and cross-reference their SAM records.

Recent Developments

• 2025 — DOGE-related vendor deregistrations: Reports of entities having SAM registrations administratively deactivated during DOGE review of federal vendor relationships; legal challenges filed asserting due process violations.
• 2024 — GSA completed remediation of the UEI migration backlog; remaining entities that had failed to convert from DUNS successfully transitioned. GSA reported ~98% of active registrations now on UEI system.
• 2023 — SAM.gov outages during peak grant application seasons generated congressional inquiries; GSA committed to infrastructure improvements to handle concurrent Grants.gov/SAM.gov application volumes.
• 2022 — DUNS-to-UEI migration completed April 2022; generated significant confusion as entities discovered lapsed DUNS registrations did not automatically activate UEIs; agencies reported delays in grant awards to new applicants.
• 2021 — OMB finalized regulations at 2 CFR Part 25 standardizing UEI requirements across all federal assistance programs, setting the legal basis for the 2022 migration.