If you plan to stay in Cameroon for more than three months, you must apply for a residence permit after entering the country with a long-stay visa. The residence permit allows foreign nationals to legally live in Cameroon for work, study, or long-term stay for up to six consecutive years. Applications are submitted at the immigration office in Cameroon. Required documents include a completed application form, a valid passport, passport-size photographs, a yellow fever vaccination card, proof of legal entry, and supporting documents based on the purpose of stay. After submission and fee payment, processing usually takes two to three months. Applicants receive a temporary receipt that allows legal stay until the residence permit card is issued. The permit is generally valid for two years and must be renewed before expiry to continue lawful residence in Cameroon.