June 17, 2013 08:27 AM
All Clearinghouse systems and services, including XML, will experience intermittent interruptions to service between midnight and 6 am, ET, on Monday, June 24, as system upgrades are performed. We apologize for any inconvenience.
You'll find instructions, FAQs, and more in online help for each of the Clearinghouse services below. Please contact us if you need additional assistance.