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On the Phone


Association of Procurement Technical Assistance Centers (APTAC)

APTAC is the professional organization of and for DLA–funded Procurement Technical Assistance Programs (PTACs). APTAC supports the PTACs by providing them important information, professional networking, comprehensive training opportunities, and a voice in national government contracting assistance and policy arenas.

Defense Logistics Agency Internet Bid Board System (DIBBS)

Official bidding system for the DLA.

North American Industry Classification System (NAICS)

Official NAICS codes website.

System for Award Management (SAM)

An official website of the U.S. government. There is NO cost to use SAM. Register to do business with the U.S. government for free directly from this site.

Duns Number

Online application to obtain your Duns number.

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