CDX will be unavailable from 1:00PM ET on 29 September to 11:59PM ET on 30 September due to an upgrade. EPA does not anticipate impacts to Exchange Network Services.

For more information, please contact Tina Chen at chen.tina [at] epa.gov.

Tina Chen
U.S. Environmental Protection Agency
Office of Environmental Information
P: 202.566.0248
E: chen.tina [at] epa.gov