What USPS website can provide valid STID codes for IMpb using MailStream Plus

Product Affected:  MailStream Plus™ 8.3.7
The USPS does add and delete Service Type ID( STID) codes. A STID code that worked for a previous presort job may not be available/ or was changed by the USPS. The effective date of the site is for  05-23-2018.

The STID IMpb information is located on this web site address:
UPDATED:  May 13, 2019