Under the FMLA, an employee is required to provide the employer with at least 30 days advance notice of the need to take FMLA leave when the need is foreseeable. If it is not possible to provide 30 days’ notice, the employee must provide notice as soon as practicable and generally must comply with the employer’s call-in procedures. In addition, the employee must provide the employer with sufficient information for the employer to determine whether the requested leave qualifies for FMLA protection, and the anticipated timing and duration of the leave. Employees may be required to furnish the employer with medical certification of the need for the FMLA leave, and periodic re-certification.