Evidence of a UK-licensed charity’s Certificate of Sponsorship is required of applicants for the UK charity visa. They also need to prove they have enough money to sustain themselves while they are there, which is one of the Charity Visa UK criteria. Only unpaid, voluntary labour is eligible for this visa, and candidates must demonstrate that they will not be taking up permanent, paid positions with the organisation. Unless they are eligible for a different visa category, those with the charity worker visa (temporary work) are only allowed to work on charitable projects for a maximum of 12 months before having to leave the UK.