USPS® database release schedule
The ZIP + 4®, DPV®, LACSLink®, SuiteLink™,
and eLOT® databases licensed from the Postal Service™ by Semaphore Corporation
are released and published according to the following schedule established by the USPS and documented in Section 708.3.3.1 of the Domestic Mail Manual:
and ordering suggestions
Postal Service Disc published Period when database Database and
releases data by Semaphore is normally used disc expires
-------------- ------------- -------------------- ------------
January February March and April May 1
February March April and May June 1
March April May and June July 1
April May June and July August 1
May June July and August September 1
June July August and September October 1
July August September and October November 1
August September October and November December 1
September October November and December January 1
October November December and January February 1
November December January and February March 1
December January February and March April 1
Any current database purchased and delivered before the normal two-month use period is fully functional upon receipt and may immediately be used.
(Databases from the Postal Service are delivered to us on unpredictable dates. Databases are processed and published on discs as quickly as possible,
but actual distribution dates will vary with each edition. Do NOT assume any disc edition is available more than one week before the normal two-month use period.)
An "expired" ZIP + 4 database is completely functional except for the ability to generate CASS™ form 3553
and the ability to support simultaneous multi-employee access.
Any ZP4 disc (with the corresponding CASS disc) gives you at least a two-month window (until the expiration date)
during which you can generate as many CASS forms for as many mailing lists as you wish.
Each CASS form is good for 180 days for ZIP + 4 discounts or 90 days for carrier route discounts,
and a CASS form can be re-used within that period as long as the corresponding mailing list remains unchanged.
The DPV database included on the ZP4 DVD-ROM is not useable after the expiration date.
The companion LACSLink, SuiteLink,
and eLOT databases distributed on CD-ROM are not useable after the expiration date.
If you're a single user generating CASS forms on an irregular schedule,
you only need to purchase one ZP4 disc and the corresponding CASS disc that together expire anytime after the day you need to create any desired CASS form.
If you generate CASS forms every month,
you only need to purchase a ZP4 disc and CASS disc every other month,
since each edition of ZP4 with LACSLink and SuiteLink can generate CASS forms for two months (until the expiration date).
If you repeatedly mail to the same unchanged list,
you can re-use the same CASS form for six months (for ZIP + 4 discounts)
or three months (for carrier route discounts),
so you only need to purchase one ZP4 disc and the corresponding CASS disc
that expire anytime after the day you need to create a new CASS form.
A new CASS form would be required after the form re-use period ends,
or if you add, change, or delete any addresses in the list.
If you don't require CASS, you don't need to include the CASS disc (LACSLink and SuiteLink) with your ZP4 purchases.
If you operate a multi-employee configuration,
you only need to purchase a ZP4 disc every other month, since any number of employees can share one installed ZP4 database for the two months until the expiration date. (ZP4 databases can't be installed on multiple machines
without purchasing multiple copies of ZP4 data discs.)
If your business always requires the latest available data,
you should purchase a ZP4 disc every month.
If your applications require monthly data like RDI™,
Geo, or NCOALink®,
you must purchase the corresponding monthly ZP4 disc.
If you want the greatest possible overlap between delivered editions,
you should purchase a ZP4 disc every month
to avoid problems such as forgetting to reorder,
losing or damaging master discs, and other disasters.
The companion DirectDPV
and Geo databases are published monthly on disc,
expire every 30 days (one month before the ZP4 edition with the corresponding published date expires, as shown below),
and are not useable after the expiration date.
DirectDPV, RDI, and Geo database schedule
How to get your own copy of the address database.
Semaphore Corporation is a non-exclusive licensee of the
United States Postal Service®.
The prices of Semaphore Corporation products
are not established, controlled or approved by the Postal Service.
The following trademarks are owned by the United States Postal Service:
ZIP + 4,
and United States Postal Service. [DA#4.07]