On April 10, 2017, the Department of Labor (DOL) posted an alert stating that the iCERT and PERM systems will be unavailable from 8:00 pm EDT on Friday, April 21, 2017 until 6:00 am EDT on Monday, April 24, 2017. The unavailability will be due to system maintenance.

Inadmissibility and Deportability By Secretary of State Determination
A determination by the Secretary of State that the admission or continued presence of an alien in the United States would or will have adverse foreign policy consequences may render the alien inadmissible or deportable.