Please be advised that U.S. EPA will be conducting system maintenance and infrastructure improvements on Sunday, February 14, 2021 from 8:00 AM to 9:00 PM EST. During this time, the Exchange Network, Shared CROMERR Services, and the EPA Central Data Exchange (CDX) may experience extended service outages or interruptions. Please plan accordingly and reschedule any activity planned during this window. 

If you have questions, you may contact the Exchange Network Help Desk.