Application for exit permit or renewal of exit permit can be done through the internet at http://www.ns.sg. No documentary proof is required unless requested by the system. Upon approval, there will not be a hardcopy exit permit issued. An electronic exit permit (eEP) number will be issued instead.
Any advice relating to absence from Singapore can be sought from:
Exit Permit Officer
Central Manpower Base
3 Depot Road Singapore 109680
Email: cmpb@starnet.gov.sg