A teacher will retain and accrue seniority if absent from work because of:
a) illness or accident up to the maximum of number of days accumulated under the provisions of the collective agreement;
b) a leave of absence up to thirty (30) calendar days, other than following sick leave per Article 10.08;
c) educational and vocational leave;
d) maternity leave under the provisions of the Employment Standards Code (C.C.S.M. E‑110);
e) teacher exchange;