COSTARS (Cooperative Purchasing Program)
Welcome to COSTARS Login!
If you have not accessed your COSTARS Membership account since July 9, 2013, you must complete the user registration process to get a new User ID and Password. Prior login credentials issued by COSTARS will not work in our new system.
The new COSTARS System uses a shared login portal with other Commonwealth systems. If you have a User ID and Password that has been used to access other Commonwealth systems via the Pennsylvania Login service, you may try using those same credentials to access the COSTARS System.
To access your COSTARS membership profile or register your organization as a new member, you must first register individually. If necessary,
click here to start your user registration process.
If you are already registered, please login below:
If you forgot your UserID or Password,
click here to get your new password.
This login is for COSTARS members only. If you are a supplier,
click here to sign-in.
Download Adobe Reader
This site is best viewed with Internet Explorer 7 or higher and Mozilla Firefox 3.0 or higher browsers and a screen resolution of 1024x768.
Copyright © 2013 Commonwealth of Pennsylvania. All rights reserved.
Department of General Services
Bureau of Procurement
555 Walnut St, 6th Floor Forum Place
Harrisburg, PA 17125