Network Distribution Center

Network Distribution Center - A highly mechanized and automated mail processing facility formerly designated as a bulk mail center. NDCs are classified as Tier 1, Tier 2, or Tier 3 sites. Tier 1 sites handle the distribution of local (turnaround) and destination Standard Mail, Periodicals, and Package Services pieces. Tier 2 sites have Tier 1 responsibilities and handle the distribution of Standard Mail, Periodicals, and Package Services pieces locally and to the network. They also handle surface transfer center containerization and dispatch operations of outgoing and incoming Priority Mail, First-Class Mail, Periodicals, and Standard Mail pieces. Tier 3 sites have Tier 1 and Tier 2 responsibilities and serve as consolidation points for less than truckload volumes from Tier 2 sites.

[Category=Postal ]

Source: USPS, 27 June 2013 09:12:11, about.usps.com/publications/pub32/pub32_terms.htm