Structural.
Municipal Code of Chicago § 14R-4-405
in effect14R-4-405 Structural.
The provisions of Section 405 of IEBC are adopted by reference with the following modifications:
1. Revise Section 405.2.2 to read:
"405.2.2 Disproportionate earthquake damage.
A building assigned to Seismic Design Category D that has sustained disproportionate earthquake damage shall be subject to the requirements for buildings with substantial structural damage to vertical elements of the lateral force-resisting system."
2. Delete exception 2 to Section 405.2.3.
2.1. Revise Section 405.2.3.1 by replacing "registered design professional" with "registered design professional."
3. Delete exception 2 to Section 405.2.4.1.
4. Delete Section 405.2.5
(Amend Coun. J. 2-19-20, p. 14473, Art. IV, § 7; Amend Coun. J. 6-25-21, p. 32180, Art. III, § 2)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2674085Fetched: 10/24/2026