Amendments to this Constitution may be initiated in either house of the General Assembly. The first step to amending the Illinois Constitution is a Joint Resolution being filed in either the Illinois House or Illinois Senate.The following Schedule Provisions shall remain part of this Constitution until their terms have been executed. Below is an overview of constitutional amendment processes in the 50 states. I discuss the various possible ways of amending state constitutions. Article XIV of the Illinois Constitution is titled "Constitutional Revision" and sets up procedures to amend the constitution. How does the Illinois Constitution compare to other state constitutions on collective bargaining? Constitutional Amendments. The Illinois Constitution was adopted in a convention on Sept. If my bolt, pump, lever, or slide action firearm has an assault weapon attachment do I have to complete an endorsement affidavit?