Mailing Services

Let the mail experts at Centennial Printing
save you money on your mailings.

We offer Standard Class Mailings (Bulk Mail). Standard Mail is used for advertising mail, catalogs, and newsletters of a non-personal nature that are not required to be mailed as First-class Mail. Mailing must contain at least 200 pieces.

Our CASS certified solutions cleanse and postal code your mail lists using current USPS address information databases to provide instant address verification while helping reduce the high cost associated with undeliverable mail.

De-duping is also available to remove duplicate addresses in your list.

Is Bulk Mail Right for You?
Use our Bulk Mail Permit, no need to purchase your own. If you are mailing a few hundred pieces at a time, a few times a year, or if you plan to make a large, one-time mailing—for example, 5,000 flyers to announce an upcoming sales event—bulk mail may be a good deal for you.

U.S. Mail Layout Guides
See our article on Mail Piece Design for help preparing your mail piece design to comply with Postal Service regulations.

Check out our articles about mailing.

Mailing Services FAQ

  • How can I design my mailing piece to ensure that it qualifies for bulk or standard mail? Will my list be checked for any duplicate or questionable addresses (CASS Certification)?
  • Can you send a clean list back to me?
  • What mailing list format should I send you?
  • What’s the best way to break out the address fields or column names when exporting or preparing a mailing list?
  • What about tabbing?
  • Is there a fee for a Return Service Request?
  • What is NCOA (National Change of Address)?
  • NCOA – How it Works
  • Mailing Services Glossary of Terms

How can I design my mailing piece to ensure that it qualifies for bulk or standard mail?
The best way is to refer to our “Mail Piece Design” this page has various layouts from post cards to newsletters. The layouts show where clear space (free of any design elements) is needed to facilitate barcoding, addressing and permit imprinting so that the mail piece is eligible for standard mail service class.

Will my list be checked for any duplicate or questionable addresses (CASS Certification)?
On every mailing order we CASS Certify the list, which allows us to identify “undeliverable” or questionable addresses. We remove any addresses that are deemed Undeliverable As Addressed (UAA) as a result of the CASS certification process. If you request we will also de-dupe your list, removing any duplicate listings. We also offer NCOA updating of your list. (see NCOA below)

Can you send a clean list back to me?
We would be happy to email the “cleaned up” version of your list to you, or send you the list of the questionable addresses we removed at your request.

Can you use my mail permit?
We are able to mail from Louisville using our mail permit. Mailing permits are tied to local USPS offices and may only be used in the locality where they are issued. If you’d like, you could use your own permit. We can prepare and tray the mailing for you.

What mailing list format should I send you?
The best file formats to send us for your mailing list are either Microsoft Excel or a tab or comma delimited text file.

The most common file formats and extensions for mailing lists are:
– .CSV Comma Delimited
– .ASC ASCII text file
– .TXT ASCII text file
– .XLS Microsoft Excel Spreadsheet

Once you have your list prepared, you can upload it to us via email (print@centennialprinting.com)

What’s the best way to break out the address fields or column names when exporting or preparing a mailing list?
The minimum required fields are: Name, Address1, City, State, Zip. Optional ones might be Business Name, Address2, Dept., etc. There is a limit of 5 lines for any address which in turn limits the number of different fields we can include.

What about tabbing?
Any mailing piece that requires tabbing is automatically tabbed according to postal regulations.

Is there a fee for a Return Service Request?
For Bulk Mail (standard mail), we will add “Or Current Resident” after the primary name or business. Pieces will be delivered as addressed and since nothing is being returned, you’ll incur no further charges or fees on the mailing. If “Return Service Requested” is used and when printed on the mail piece ensures that it is returned to you with the new address or reason for non-delivery attached. Please NOTE If this option is used, you will be charged for all returned or updated addresses by the USPS, at first class rates.

What is NCOA (National Change of Address)?
Over 40 million Americans change their address every year. The National Change of Address (NCOA) system uses the USPS database to check for people and businesses that have filed a change of address with the USPS within the last 48 months. Performing this update on a list saves you money on printing and postage by updating a list. Studies have shown that this service can save users a significant cost of their mailings (in many cases up to 15% or more) plus help increase response rates. NOTE: The post office does not forward bulk mail to the new address – they just recycle it.

NCOA – How it Works
We compare your list with the change orders given to the post office. which automatically updates your list with that person or business’ new address. We provide you with this a list of the names with changes and their new address (some change to valid addresses, others change to non-updateable addresses). There is a cost for this service. Call us for rates.

Mailing Services Glossary of Terms

Ancillery Service Endorsements (such as Service Requests)
These are usually imprinted directions on a mail piece to tell the Post Office what to do with the piece if it becomes undeliverable, such as: Change Service Requested, Forwarding Service Requested, Return Service Requested and Address Service Requested.

Barcodes
Barcodes are small vertical lines printed in the bottom right corner of the piece to be mailed – we call this area the clear space. Much like a grocery scanner, barcodes represent the numbers which make up the address and Zip+4 codes. These codes make it possible for the mail processing equipment to quickly process these pieces, lowering mail-processing and delivery costs. The savings are passed on to consumers through lower postage rates.

CASS Certification
Coding Accuracy Support System (CASS) improves delivery of your mail piece and maximizes postage savings by adding Zip+4 codes to your mailing list where possible. The CASS Certification process also helps determine certain address problems and standardizes addresses to Postal Service formatting. The correct Zip+4 allows us to apply postal barcodes to your mail pieces, qualifying your mail for Mail Class discounts.

Clear Space
Area in lower right of a mailing piece where the address and barcode is printed. This area must be blank or with less than 10% ink density, to ensure machine readability and therefore be eligible for your desired mail service class. Refer to our “Mail Piece Design” for more information and help in preparing your layout.

Ink Jet Addressing
We use ink jet technology for accurate addressing and bar coding that meets or exceeds USPS addressing regulations.

NCOA (National Change of Address)
Over 40 million Americans change their address every year. The National Change of Address (NCOA) system uses the USPS database to check for people and businesses that have filed a change of address with the USPS within the last 48 months. Performing this update on a list saves you money on printing and postage by updating a list. Studies have shown that this service can save users a significant cost of their mailings (in many cases up to 15% or more) plus help increase response rates. NOTE: The post office does not forward bulk mail to the new address – they just recycle it.

Zip+4
The standard ZIP Code is a system of 5 digit codes that identify the individual post office or area delivery station associated with the address. The additional 4 digits identify a specific range of delivery addresses.