Post Office

Choosing a Service for Mailing



First-Class Mail

First-Class Mail includes postcards and letters. Large envelopes and packages containing qualified pieces can be sent using First-Class Mail. First-Class Mail service is typically used for personal and business correspondence, and bills.

Library Mail

Library Mail is mail that must meet the standards for package service. Library Mail rates are based on the weight of each addressed piece without regard to zone. Each piece of Library Mail must show, in the address or the return address, the name of the following:

  • Fraternal organization or association
  • Philanthropic (charitable) organization
  • Public library
  • School, college, or university

Media Mail

Small and large packages, including thick envelopes and tubes, can be sent using Media Mail. Contents are limited to books, film, manuscripts, sound recordings, video tapes, and computer media (CDs, DVDs, and diskettes). Sometimes called "Book Rate", Media Mail cannot contain advertising. Media Mail is less expensive than Parcel Post.

Parcel Post

Small and large packages, thick envelopes and tubes containing gifts, and merchandise can be sent using Parcel Post. In some cases,this is a less expensive way to send your article,but it does not receive the service provided by First-Class Mail.

Priority Mail

Large or thick envelopes, including tubes and packages, containing mailable items can be sent using Priority Mail. This service is typically used to send documents, gifts, and merchandise. Free Priority Mail envelopes, boxes, and tubes including "Flat Rate" boxes, which allow you to send as much weight as you can fit in the box for one flat rate, are available at the University Post Office. If shipping material is not in stock, it must be ordered. There is a 10 day shipping time requested by the USPS.


Shape Speed Cost
Express Mail All types of mail 70 pounds or less 1-2 days (guaranteed) Based on weight
Priority Mail Flats and Packages 70 pounds or less 1-3 days Based on weight and distance if over 1 pound.
First Class Mail Letters, flats and packages weighing 13 ounces or less 1-3 days Based on weight
Parcel Post Packages weighing 70 pounds or less 2-9 days Based on weight and distance. If undeliverable, the item will be returned at the same cost as it was to send it.
Media Mail Packages 70 pounds or less 2-9 days Based on weight and content
Bound Printed Matter Packages 2-9 days Based on weight, content, and distance
Adding Extra Services
Confirmation at delivery Rate class Proof at deposit Protection in transit
Date and time of delivery provided - signature of recipient available upon request Express Mail Receipt provided at time of mailing Insured Mail ($100 coverage included, but more coverage can be added.)
Certified Mail, Delivery Confirmation, Signature Confirmation Priority Mail Certificate of mailing Insured Mail and Registered Mail
Certified Mail, Delivery Confirmation*, Signature Confirmation* First Class Mail Certificate of mailing Insured Mail and Registered Mail
Delivery Confirmation*, Signature Confirmation* Parcel Post Certificate of mailing Insured Mail
  Media Mail Same as Parcel Post  
*For packages only Bound printed matter Same as Parcel Post