UBCのGRADUATE STUDENTS のところで、留学生から移民のステータスの変更について書いてある部分をみつけました。(私はUBCではないのですが・・・)
Students who become Landed Immigrants or Permanent Residents while enrolled at UBC are required to provide a copy of their Record of Landing to the Registrar’s Office. If an international student becomes a Landed Immigrant on or before the tuition fee due date of the term, regular fees will be assessed for that term. If an international student becomes a Landed Immigrant after the first tuition fee due date, regular fees will be assessed for the following term. Landed Immigrant status is attained as of the "Landed on" date (box 45) indicated on the Record of Landing, not the Date Issued.