Door Not Accessible (DNA) & No Secure Location (NSL) Tables

In addition to verifying USPS® delivery points, the DPV and DSF2 Products have added two additional hash tables to assist mailers in streamlining delivery to reap the benefits of deliverable mail. These new tables are called Door Not Accessible (DNA) and No Secure Location (NSL).

Mail Processing Equipment (MPE) Interface Distribution Required Text Document

This document is a software interface distribution required text document for NCOALink Mail Processing Equipment Licensees.

Mail Processing Equipment (MPE) Data User Required Text Document

This document is a required text document for NCOALink Mail Processing Equipment Service Provider data users.

Service Provider Required Text Document

This document is a required text document for the NCOA^Link® Service Provider and the mailing list owner.

Mail Processing Agent Required Text

This document provides information on the NCOALink® Full-Service Provider Mail Processing Agent Package.

Full and Limited Service Provider NCOALink® with ANKLink® Required Text Document

Required text document for Full and Limited Service providers of NCOA^Link and ANK^Link.

Combined Required Text Documents (RTD)

This document contains the specified required documents for NCOA^Link®.

Move Update at a Glance

Mailers who claim presorted or automation prices for First-Class Mail® or Standard Mail® must comply with the Move Update requirements using one of the approved address hygiene methods. The Postal Service offers three preapproved methods for mailers to use in meeting the Move Update Requirement: ACS™, NCOALink® and NCOALink® MPE, and Ancillary Service.

Customs Form Certification Checklist

This document contains a checklist for the Customs Form Certification.

USPS® Delivery Standards and Statistics Fact Sheet