Ill. Admin. Code tit. 77, § 370.2230
f) The drawings shall include:
j) Following approval of the design development drawings and the outline specifications, working drawings and specifications shall be submitted. All working drawings shall be well prepared and clear and distinct prints submitted. Drawings shall be accurately dimensioned and shall include all necessary explanatory notes, schedules and legends. Working drawings shall be complete and adequate for contract purposes. Drawings shall be prepared for each of the following branches of work: Architectural, Structural, Mechanical, Electrical and Plumbing.
1) The architectural drawings shall show:
2) The structural drawings shall show:
3) Mechanical drawings with specifications shall show the complete heating, cooling and ventilation systems plumbing and drainage systems, and shall include the following:
A) Heating, Cooling and Ventilation.
B) Plumbing and Drainage Systems.
4) Electrical drawings shall show all electrical wiring, outlets, and equipment which require electrical connections, and shall include the following:
5) When the project is an addition, the preceding requirements apply and details and information on the existing building also shall be provided as follows: