I understand that I am required to provide timely medical or other valid certification for my leave request, also notify my department leave. Eligible employees may take up to 12 workweeks of leave in a 12-month period per federal law.Application to Contra Costa College via opencccapply.net. â–¡ Personal Statement Letter addressed to CCC Nursing Dept. 9.18 MILITARY LEAVE: Employees shall be granted military leave in accordance with State of. Voluntary non-paid experience will be accepted if job related. 10.3 Accrual During Leave Without Pay. No employee who has been granted a leave without pay or unpaid military leave shall accrue any vacation.