For international travel, foreigners residing in Cameroon need to hold a valid residence permit or an equivelent document, not subject to any particular formality, aside the general police formalities at the exit from the Cameroon national territory. Indeed, the presentation of these items will be required upon return to Cameroon. Of course, foreign residents in Cameroon must also carry travel documents and authorizations required for entry into the destination country (passport or comparable valid documents, visa, vaccination certificate, etc.).