You are considered a second DUI offender if you have:

• A previous statutory summary suspension/revocation from the State
• A suspension for refusing a chemical test from another state
• Court supervision for DUI, or a conviction for DUI within the last five years
• All of the above
  Explanation:

  "If you have a previous statutory summary suspension/revocation from Illinois, a suspension for refusing a chemical test from another state, court supervision for DUI, or a conviction for DUI within the last five years, you are considered a second offender."