20 ILCS 2505/2505-1 : GOVERNMENT — EXECUTIVE BRANCH — DEPARTMENT OF REVENUE — DEPARTMENT OF REVENUE LAW OF THE CIVIL ADMINISTRATIVE CODE OF ILLINOIS — DEPARTMENT OF REVENUE —1 - Article short title TEXT PDF This Article 2505 of the Civil Administrative Code of Illinois may be cited as the Department of Revenue Law. 20 ILCS 2505/2505-1 P.A. 91-239, eff. 1/1/2000.