14B-4-412 Aircraft-related occupancies.
The provisions of Section 412 of IBC are adopted by reference with the following modifications:
1.   Delete Section 412.2.2.1.
2.   Delete exception 2 to Section 412.2.3.2.
3.   Revise exception 3.1 to Section 412.2.3.2 to read:
"3.1.   Voice communication systems control units."
4.   Revise Section 412.3.2 to read:
"412.3.2 Construction.
Aircraft hangars shall be of Type I or II construction. Where hangars have basements, floors over basements shall be of Type IA construction and shall be made tight against seepage of water, oil or vapors. There shall not be openings or communication between basements and the hangar. Access to basements shall be from the exterior only."
5.   Revise Table 412.3.6 by changing the values for Types III, IV and V construction to "NP" and adding a legend below the table stating "NP = Not permitted."
6.   Delete Section 412.4 and its subsections.
7.   Revise Section 412.5 by replacing "Section 416" with "the Chicago Fire Prevention Code."
(Amend Coun. J. 10-7-20, p. 21791, Art. II, § 5)