The provisions of Section 301 of IEBC are adopted by reference with the following modifications:
1. Revise Section 301.3 to read:
"301.3 Alteration, addition or change of occupancy.
The alteration, addition or change of occupancy of all existing buildings shall comply with one of the methods listed in Section 301.3.1, 301.3.2 or 301.3.3 as selected by the applicant. Sections 301.3.1 through 301.3.3 shall not be applied in combination with each other.
301.3.1 Prescriptive compliance method.
Alterations, additions and changes of occupancy complying with Chapter 5 shall be considered in compliance with the provisions of this code.
301.3.2 Work area compliance method.
Alterations, additions and changes of occupancy complying with the applicable requirements of Chapters 6 through 12 shall be considered in compliance with the provisions of this code.
301.3.3 Performance compliance method.
Alterations, additions and changes of occupancy complying with Chapter 13 shall be considered in compliance with the provisions of this code."
2. Revise Section 301.5 to read:
"301.5 Compliance with accessibility.
Accessibility requirements for existing buildings shall comply with ICC A117.1 as modified by Chapter 11 of the Chicago Building Code."