An employee who seeks FMLA leave may be required to provide:
- 30-day advance notice of the need to take FMLA leave when the need is foreseeable;
- Notice "as soon as practicable" when the need to take FMLA leave is not foreseeable ("as soon as practicable" generally means at least verbal notice to the employer within one or two business days of learning of the need to take FMLA leave);
- Sufficient information for the employer to understand that the employee needs leave for FMLA-qualifying reasons (the employee need not mention FMLA when requesting leave to meet this requirement, but may only explain why the leave is needed); and,
- Where the employer was not made aware that an employee was absent for FMLA reasons and the employee wants the leave counted as FMLA leave, timely notice (generally within two business days of returning to work) that leave was taken for an FMLA-qualifying reason.