In this subtitle the following words have the meanings indicated. “Catastrophic illness or injury” means a condition that is incapacitating or life threatening as certified by a health care provider, as defined in the federal Family Medical Leave Act. “Immediate family” means: the spouse of the employee; children, including foster and stepchildren of the employee; parents, stepparents, or foster parents of the employee; brothers and sisters of the employee; and grandparents and grandchildren of the employee. “Leave Bank” means the State Employees’ Leave Bank. “Leave Donation Program” means the Employee-to-Employee Leave Donation Program.