The Family and Medical Leave Act (FMLA) entitles employees 12 workweeks (or 480 hours) of unpaid leave (or paid leave) in any 12-month period for medical or family care reasons. Employees with chronic or continuing serious health conditions may use the 480 hours on an intermittent, as-needed, basis. The Agency may require medical certification by the employee’s health care provider before approving FMLA leave. If you qualify for FMLA leave and want to assist your health care provider to adequately fill out the FMLA certification form, NTEU Chapter 68 suggests using the letter We have created for this purpose. FMLA Letter