Brunei's Foreign Ministry sorts nationalities into visa categories. Foreign nationals of countries in category D do not require any visas to enter Brunei and may stay for up to 90 days (D1), 30 days (D2) or 14 days (D3). Holders of passports from countries in category C can apply for a visa on arrival upon entry. Foreign nationals of countries in categories A and B require a visa, applied for through the nearest Brunei mission abroad.
- Passport validity
- The UK government says that to enter Brunei your passport must have an expiry date at least 6 months after the date you arrive.
- Travel insurance
- Canada's travel advice says that when entering Brunei you must be able to show sufficient proof of medical insurance to customs officials, covering the entire length of your stay, and that without proof of insurance your visa will only be valid for two weeks. Australia's Smartraveller says you're required to hold medical insurance for the duration of your visa, with the minimum coverage depending on the type of visa. No Brunei government source we could read states this rule.
- Return or onward ticket
- Brunei's Foreign Ministry lists a copy of a confirmed return flight ticket and a copy of accommodation in Brunei among the documents required for a visa application. No official source we could read states an onward-ticket check for visa-free visitors.
- Vaccinations
- WHO's country list gives Brunei's requirement as proof of yellow fever vaccination for travellers aged 9 months or over arriving from countries with risk of yellow fever transmission, and for travellers who have transited for more than 12 hours through an airport of such a country.