Ministry of Internal Affairs South Sudan
Juba, South Sudan
The following are useful links
Obtaining a passport
http://southsudan.usembassy.gov/applications-pass.html
A Laissez-Passer
http://southsudanngoforum.org/wp-content/uploads/2012/10/121015-Update-Visa-Work-Permit-Issues.pdf
Online Visa Application
http://south-sudan.travisa.com/
Visiting South Sudan
http://southsudan.usembassy.gov/applications-pass.html
Becoming a citizen
http://southsudanese.visaapplicationrequirements.com/
Green Card