Which platform is the current official source for government contracting information and requires a DUNS number?

• A. Accurint/TLO/CLEAR
• B. sam.gov
• C. Guidestar.org
• D. IRS Form 990

Answer: (B)

SAM.gov is the official portal for federal contracting and procurement information. It serves as the central entry point to search for opportunities, register as a vendor, and access authoritative contract data and past performance across federal agencies. Because it is the mandated system for federal awards, it is where you would go to get official government contracting information. The other options don’t serve this role: Accurint/TLO/CLEAR are private investigative databases used for locating people or assets, Guidestar.org focuses on nonprofit profiles, and IRS Form 990 is a tax document for nonprofits. Historically, a DUNS number was used in vendor identification within SAM.gov, which is why that detail appears in the question.