* بالتجنس عندما يكون الشخص قد بلغ الحادية والعشرين على الأقل أو الخامسة عشرة في حالة طفل يكون أحد أبويه - الأم أو الأب مواطنا.
By birth, if both parents are citizens; By registration, if the person was officially registered in the census and living in Bhutan before the end of 1958, the date of the first citizenship act; By naturalisation, when the person must be at least 21 years old, or 15 years old in the case of a child only one of whose parents, mother or father, is a citizen.