Illinois Declination of Office is a process in which a person formally declines to accept or take on a political office. There are two types of Illinois Declination of Office: voluntary and involuntary. Voluntary Illinois Declination of Office occurs when a person voluntarily declines to take on a political office, while involuntary Illinois Declination of Office occurs when an individual is unable to legally take on the office due to factors such as age, residency, or other qualifications. This process is regulated by the Illinois State Board of Elections, and must be completed and filed with the county clerk in order for a person to officially decline a political office.