Do not pay the I-901 SEVIS Fee again. Clear your debt through the Debt Management Center. Their phone number is (802) 288-7600. You will be allowed to go to your visa interview or, if visa exempt, apply for entry at the POE before clearing your debt. Reapply for an exchange visitor visa within 12 months of the initial I-901 SEVIS Fee payment if the original application and the reapplication are for the same exchange visitor category. 2  See the instructions for requesting that SEVP transfer your fee payment information.
Definition of relay. 1  1a : a supply (as of horses) arranged beforehand for successive reliefb : a number of persons who relieve others in some work worked in relays around the clock. 2  2a : a race between teams in which each team member successively covers a specified portion of the courseb : one of the divisions of a relay.
How relays work. Here are two simple animations illustrating how relays use one circuit to switch on a second circuit. When power flows through the first circuit (1), it activates the electromagnet (brown), generating a magnetic field (blue) that attracts a contact (red) and activates the second circuit (2).