The provisions of Section 420 of IBC are adopted by reference with the following modifications:
1. Revise Section 420.1 to read:
"420.1 General.
Occupancies in Groups I-1, R-1, R-2, R-3, R-4 and R-5 shall comply with the provisions of Sections 420.1 through 420.10 and other applicable provisions of this code."
2. Revise the exceptions to Section 420.2 to read:
"Exception: Within Group R congregate living facilities, where sleeping units are arranged in suites containing no more than five sleeping units each, walls between the sleeping units and shared living spaces are not required to be constructed as fire partitions."
3. Delete the exception to Section 420.3.
4. Revise Section 420.4 by replacing "in accordance with" with "where required by."
5. Revise Section 420.5 by replacing "R-3 and R-4" with "R-3, R-4 and R-5."
6. Revise item 1 in Section 420.6.1 by replacing "15 net square feet (1.4
m2)" with "30 net square feet (2.8 m2)."
7. Revise item 5 in Section 420.8 by deleting "Section 505 of."
8. Delete Section 420.8.1.
9. Revise Section 420.9 to read:
"420.9 Group R cooking facilities.
In Group R occupancies, cooking appliances used for domestic cooking operations and located within a dwelling unit or sleeping unit shall be in accordance with the Chicago Mechanical Code.
420.9.1 Shared cooking facilities.
In Group R occupancies, rooms or indoor spaces that contain cooking facilities with domestic cooking appliances shared by the occupants of more than one dwelling unit or sleeping unit shall be in accordance with all of the following criteria:
1. The types of domestic cooking appliances permitted shall be limited to ovens, cooktops, ranges, coffee makers, warmers and microwaves.
2. The space containing the domestic cooking facilities shall be arranged so as not to obstruct access to a required exit.
3. Domestic cooking hoods installed and constructed in accordance with section 505 of the Chicago Mechanical Code shall be provided over cooktops or ranges.
4. [Reserved.]
5. A timer shall be provided that automatically deactivates the cooking appliances within a period of not more than 120 minutes.
6. A portable fire extinguisher shall be provided. Installation shall be in accordance with Section 906 and the extinguisher shall be located within a 30-foot (9144 mm) distance of travel from each domestic cooking appliance."
10. Delete Section 420.10 and its subsections.
(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 14; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 6))