What criteria do I need to meet to qualify for the leave bank credits?

In order to qualify for each fiscal year's worth of leave, an employee needed only to be employed for one day in that fiscal year(s), whether or not they were on leave, assignment or otherwise not active. For example, if you were hired to the federal public service on September 1, 2018, and have been employed since then, you will get two days of leave credited to your leave bank (2018-19 and 2019-2020 fiscal years).