10 ILCS 5/24-13
Four sets of ballot labels for use in each voting machine shall be provided for each polling place for each election by the election authority. There shall also be furnished all other necessary materials or supplies for the proper use of the voting machines, including durable transparent noninflammable covering at least 1/16 inch thick with which all the ballot labels shall be securely covered to prevent shifting, tampering with or mutilations of the ballot labels, facsimile diagrams, return sheets, certificates, forms and materials of all kinds provided for in this Article. The election authority shall before the day of election, cause the proper ballot labels, together with the transparent protective covering for same, to be put upon each machine, corresponding with the sample ballot labels herein provided for, and the machine in every way to be put in order, set and adjusted, ready for use in voting when delivered at the precinct polling places and for the purpose of so labeling the machine, putting in order, setting and adjusting the same, they may employ one competent person to be known as the voting machine custodian and additional deputy custodians as required. The election authority shall, preceding each election day, holding a meeting or meetings for the purpose of instructing all election precinct officials who are to serve in an election precinct where voting machines are to be used. Before preparing any voting machines for any election, the election authority shall cause written notices to be sent to the chair of the county central committee of each political party having a candidate or candidates on the ballot, or the chair of each municipal or township committee of each political party having candidates on the ballot, in the case of a municipal or township election, stating the times when, and the place or places where, the voting machines will be prepared for the election; they shall also cause written notices to be sent to the chair or presiding officer of any organization of citizens within the county, or other political subdivision, having as its purpose, or among its purposes or interests, the prevention, investigation or prosecution of election frauds, which has registered its name and address and the names of its principal officers with the officer, officers or board having charge of the preparation of the machines for the election, at least 40 days before such election, stating the times when, and the place or places where, the voting machines will be prepared for the election, at which times and place or places, one representative of each such political party, certified by the respective chair of the county managing committee of each such political party, or the chair of the municipal or township committee in the case of a municipal or township election, and one representative of each such candidate, certified by such candidate, and one representative of each organization of citizens, certified by the respective chair or presiding officers of such organizations shall be entitled to be present and see that the machines are properly prepared and tested and placed in proper condition and order for use at the election. The custodian or custodians of voting machines and the party representatives shall take the constitutional oath of office. It shall be the privilege of such party and organization representatives to be present at the preparation of the voting machines for the election and to see that each machine is tested for accuracy and is properly prepared and that all registering counters are set at zero. The custodian shall, in the presence of the party and candidate and organization representatives, prepare the voting machine for the election and set all registering counters at zero, and he shall then, assisted by the watchers, test each such registering counter for accuracy by casting votes upon it, and such testing shall be done in the presence of the watchers, until each such registering counter is correctly registering each vote cast upon it, and each certificate for each machine shall state that this has been done, and the custodians shall then, in the presence of the party and candidate and organization representatives, reset each registering counter to zero, and shall then immediately seal the voting machine with a numbered metal seal, and a record of the number on the seal shall then and there be made by the custodian on the certificate for that machine and the seal shall be so placed as to prevent operation of the machine or its registering counters without breaking the seal, and the custodian shall then immediately make a record on the certificate for that machine of the reading shown on the protective counter. Immediately after each machine has been so tested and prepared for the election, it shall be the duty of such custodian or custodians to make a certificate in writing which shall be filed in the office of the election authority, stating the serial number of each voting machine, whether or not such machine has all the registering counters set at zero, whether or not such machine has been tested by voting on each registering counter so as to prove that each such registering counter is in perfect and accurate working condition, the number registered on the protective counter, and the number on the metal seal with which the machine is sealed against operation. Unless objection is filed, within 2 days, with the election authority, to the use of a particular machine or machines, such voting machine or machines when certified to be correct by the custodian shall be conclusively presumed to have been properly prepared for use at the election for which they were prepared. Any objection filed shall particularly set forth the number of the machine objected to, and the particulars or basis for the objection. The machine shall then be locked so that it cannot be operated or voted upon without first unlocking it and the keys shall be at once returned to the custody of the election authority, and the election authority shall cause the machine so labeled in order, set and adjusted, to be delivered at the polling place, together with all necessary furniture and appliances that go with the same, not later than one hour before the hour at which the polls are to be opened. The election authority shall deliver the keys, which unlock the voting mechanism and the registering counters or counter compartment of the voting machine, to the precinct election board, not earlier than noon on the Saturday preceding the election day, nor later than one hour before the opening of the polls, and shall receive and file a receipt therefor. The keys shall be enclosed in a sealed envelope on which shall be written or printed: (1) The name, number of or designation of the election precinct or district; (2) The number of the voting machine; (3) The number of the seal with which the machine is sealed; (4) The number registered on the protective counter or device as reported by the custodian. No precinct election official shall break the seal of such envelope except in the presence of all members of the precinct election board, and such envelope shall not be opened until it shall have been examined by each member of the precinct election board to see that it has not been previously opened. Such envelope shall not be opened until it shall have been found that the numbers and records recorded thereon are correct and agree in every respect with the numbers and records as shown on the machine. If any such number is found not to agree with the numbers on the machine, the envelope shall not be opened until the precinct election officials shall have notified the election authority, and until the election authority or some other person authorized by the election authority shall have presented himself at the polling place for the purpose of re-examining the machine, and shall have certified that it is properly arranged after testing and examining it. On the morning of the election the precinct election officials shall meet in the polling place at least one hour before the time for opening the polls. They shall see that the sample ballot labels and instructions for voting are posted properly, and prominently so that the voters can have easy access to them and that the instruction model is placed on the precinct election officials' table and that everything is in readiness for voting at the hour of opening the polls. They shall also see that the voting machine is properly illuminated in accordance with the equipment furnished. The precinct election officials shall compare the ballot labels on the machine with the sample ballots and return sheets, see that they are correct, examine and see that all the registering counters in the machine are set at zero (0) or if the machine is equipped with a device which will automatically record the number on the registering columns on the back of the machine to recording sheets of paper and the said paper can be removed without opening the back of the machine, that all of the said registering counters for each candidate as appears on the said recording sheet registers (0) and that the public counter is also set at zero (0) and that the machine is otherwise in perfect order and they shall compare and record the number on the metal seal with which the voting machine is sealed, with the number furnished them as recorded on the envelope containing the keys, by the election authority, and if the number on the seal and the number on the protective counter do not agree with the numbers supplied to them, they shall not open the polls, but shall notify the election authority, and the election authority or its authorized representatives or custodian, shall, as soon as may be, test, examine and set the machine in the same manner as is provided in this section for the testing, setting and preparation of voting machines for an election. If, after being so tested and examined, it is found that such voting machine is in perfect working order, all registering counters shall be set at zero (0), the reading of the protective counter shall be read and recorded and the precinct election officials may proceed with the opening of the polls. If such machine be found not to be in perfect working order as hereinbefore provided, it shall not be used in the election, but shall be replaced with another machine which is in perfect working order, properly set, tested and sealed, and the election board shall then proceed to examine such machine in the same manner as is provided in this section for the examination of each voting machine by the election board before the opening of the polls. They shall not thereafter permit the counters to be operated or moved except by electors in voting, and they shall also see that all necessary arrangements and adjustments are made for voting irregular ballots on the machine. Each precinct election official shall sign a certificate which shall certify that he has complied with all the provisions of this Article, and that, before the polls were declared open, he found the ballot labels to be in their proper places and to exactly agree with the facsimile diagrams and return or recording sheet belonging to that precinct; all registering counters set at zero (0); the number on the metal seal and the number on the protective counter exactly agree with the records furnished by the election authority; the metal seal actually was sealed so as to prevent movement of the voting machine mechanism without first breaking the seal; all ballot labels were clean and without marks of any kind upon them and they were in no way defaced or mutilated. When voting machines are used in an election precinct, the watchers or challengers representing the various political parties, candidates and citizens' organizations, provided by law to be present shall be permitted to be present from the time the precinct election board convenes on election morning until the completion of the canvass after the close of the polls. Such watchers shall be permitted to carefully examine each voting machine before the polls are declared open and to compare the number of the metal seal and the number on the protective counter with their own records, and to see that all ballot labels are in their proper places, and that the machine registering counters are all set at zero (0), and that the machine or machines are in every way ready for voting at the opening of the polls. If it is found that the ballot labels are not in their proper places on the machine, or that they fail to conform in any respect, with the facsimile diagrams and return sheets belonging to the precinct, the precinct election officials shall not use such machine but shall at once notify the proper election authority, and such machine shall not be used until the election authority or person authorized by it, shall have supplied the proper ballot labels, and shall have placed such proper ballot labels in their proper places, and they shall have been found to be correct by the precinct election officials and watchers. If any registering counter shall be found not to be set at zero (0), the precinct election officials shall immediately notify the custodian or officer or officers or board having charge of the preparation of the voting machines for the election or primary, and the election authority or person authorized by him or them or it shall adjust such registering counter or counters to zero (0), in the presence of all the precinct election officials and watchers serving in such election district.
10 ILCS 5/24-13