Illinois StatutesArticle 99 - Effective Date (65 ILCS 120/Art. 99 heading) ARTICLE 99. (Source: P.A. 96‑7, eff. 4‑3‑09.) (65 ILCS 120/99‑99) Sec. 99‑99. Effective date. This Act takes effect upon becoming law. (Source: P.A. 96‑7, eff. 4‑3‑09.)