Can one operate a minibus with 15 seats on a B licence?

Your category B driving licence should come with a D1 (101) entitlement that entitles you to operate a minibus with up to 16 seats that are not being used for hire or reward and has a combined weight limit of 12,000 kg. Also, you can check out some of the aspects of the D1 driving licence used to drive minibuses.