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Prior Chicago Building Code
BUILDING CODE AND RELATED EXCERPTS OF THE MUNICIPAL CODE OF CHICAGO
DIVISION 1 - ADMINISTRATION
DIVISION 2 - DEFINITIONS
DIVISION 3 - USE AND OCCUPANCY CLASSIFICATIONS
DIVISION 4 - SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY
DIVISION 5 - GENERAL BUILDING HEIGHTS AND AREAS
DIVISION 6 - TYPES OF CONSTRUCTION
DIVISION 7 - FIRE-RESISTANCE-RATED CONSTRUCTION
DIVISION 8 - INTERIOR FINISHES (NA)
DIVISION 9 - FIRE PROTECTION SYSTEMS
DIVISION 10 - MEANS OF EGRESS
DIVISION 11 - ACCESSIBILITY
DIVISION 12 - INTERIOR ENVIRONMENT
DIVISION 13 - ENERGY EFFICIENCY AND ENVIRONMENTAL PROTECTION
DIVISION 14 - EXTERIOR WALLS (NA)
DIVISION 15 - ROOF ASSEMBLIES AND ROOFTOP STRUCTURES (NA)
DIVISION 16 - STRUCTURAL DESIGN
DIVISION 17 - STRUCTURAL TESTS AND SPECIAL INSPECTIONS
DIVISION 18 - SOILS AND FOUNDATIONS
DIVISION 19 - CONCRETE
DIVISION 20 - ALUMINUM (NA)
DIVISION 21 - MASONRY
DIVISION 22 - STEEL
DIVISION 23 - WOOD
DIVISION 24 - GLASS AND GLAZING (NA)
DIVISION 25 - GYPSUM BOARD AND PLASTER (NA)
DIVISION 26 - PLASTIC (NA)
DIVISION 27 - ELECTRICAL
DIVISION 28 - MECHANICAL SYSTEMS
DIVISION 29 - PLUMBING SYSTEMS
DIVISION 30 - ELEVATORS AND CONVEYING SYSTEMS
DIVISION 31 - SPECIAL CONSTRUCTION (NA)
DIVISION 32 - ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
DIVISION 33 - SAFEGUARDS DURING CONSTRUCTION
DIVISION 34 - EXISTING STRUCTURES
DIVISION 35 - REFERENCED STANDARDS

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Subdivision 307 – High-Hazard
CHAPTER 13-112
HAZARDOUS USE UNITS
Article I.  General Provisions
13-112-010   General requirements.
13-112-020   Special requirements.
13-112-030   Fire protection requirements.
13-112-040   Types of occupancies.
13-112-050   Classification of occupancies.
13-112-060   Hazardous use rooms.
Article II.  Buildings of Mixed Occupancies
13-112-070   General requirements.
13-112-080   Auxiliary business use.
13-112-090   Fire resistive separation.
13-112-100   Communicating openings.
13-112-110   Courts.
Article III.  Rooms and Floor Areas
13-112-120   General requirements.
13-112-130   Floor areas.
13-112-140   Rooms prohibited in basements.
13-112-150   Lot occupancy.
13-112-160   Court requirements.
13-112-170   Ventilation.
13-112-180   Fire doors.
13-112-190   Equipment.
13-112-200   Conveyors and ducts.
13-112-210   Heating.
13-112-220   Heat piping.
13-112-230   Licenses, certificates of fitness, permits and bonds.
Article IV.  Means of Exit
13-112-240   General requirements.
13-112-250   Exits near openings.
13-112-260   Distance to exits.
13-112-270   Number of exits.
13-112-280   Vertical means of exit.
13-112-290   Dry cleaning building.
13-112-300   Film examining or repairing rooms.
13-112-310   Motion picture trial exhibition rooms.
Article V.  Artificial Lighting and Exit Signs
13-112-320   General requirements.
13-112-330   Artificial lighting.
13-112-340   Exit signs.
13-112-350   Exit directional signs.
ARTICLE I.  GENERAL PROVISIONS (13-112-010 et seq.)
13-112-010  General requirements.
   Every building, structure or tank, part of a building, hereafter designed, erected, altered or converted for the purposes of a hazardous use unit, as defined in Section 13-56-210, shall comply with the building provisions of this Code, including, but not limited to, the following:
Chapter 13-56 Classification of Buildings by Occupancy.
   Section 13-56-230 Mixed occupancy.
   Section 13-56-300 Occupancy content.
Chapter 13-60 Classification of Buildings by Construction Type.
Chapter 13-116 Fire Limits – Location Limitations.
   Sections 13-116-040 and 13-116-050 Location on property.
   Sections 13-116-080 to 13-116-130 Inclusive. Limitations within fire limits.
Chapter 13-48 Height and Area Limitations.
   Section 13-48-010 Height limitations.
   Section 13-48-050 Area limitations.
   Section 13-48-100 Mixed occupancy.
Chapter 15-8 Fire-Resistive Requirements.
   Section 15-8-010 Fire walls.
   Section 15-8-070 Exterior walls.
   Sections 15-8-120, 15-8-190, 15-8-240 Enclosures required.
   Section 15-8-250 Partitions.
   Section 15-8-280 Exterior trim.
   Section 15-8-330 Roof coverings.
   Section 15-8-370 Interior wall and ceiling finish and trim.
   Section 15-8-450 Flooring.
   Section 15-8-510 Roof structures.
   Section 15-8-570 Firestopping.
Chapter 18-28 Chimneys, Flues and Vents.
Chapter 15-16 Fire Protection Equipment.
Chapter 15-12 Fire-Resistive Materials and Construction.
Chapter 13-172 Light And Ventilation.
Chapter 13-160 Exit Requirements.
   Section 13-160-030 Types of exits.
   Section 13-160-050 Minimum number of exits.
   Section 13-160-060 Arrangement and location of exits.
   Section 13-160-110 Travel distance to exits.
   Section 13-160-170 Width of exits.
   Section 13-160-230 Outside exits.
   Section 13-160-240 Doors.
   Section 13-160-290 Stairways.
   Section 13-160-360 Smokeproof towers.
   Section 13-160-430 Ramps.
   Section 13-160-480 Horizontal exits.
   Section 13-160-520 Escalators.
   Section 13-160-580 Exterior stairs.
   Section 13-160-630 Fire escapes.
   Section 13-160-660 Exit lighting.
   Section 13-160-700 Exit signs.
Chapter 13-52 Minimum Design Loads.
Chapter 13-120 Materials, Methods and Tests.
Chapter 13-132 Foundations.
Chapter 13-140 Masonry Construction.
Chapter 13-144 Wood Construction.
Chapter 13-136 Concrete Construction.
Chapter 13-148 Steel and Metal Construction.
Chapter 13-124 Safety Requirements.
Chapter 13-124 Safeguards During Construction.
Chapter 13-128 Use of Public Property.
Chapter 13-196 Existing Buildings.
Chapter 18-28 Heating.
Chapter 18-28 Ventilation.
Chapter 18-29 Plumbing.
Chapter 18-29 Sanitation Requirements.
Title 14C Conveyance Devices.
Title 14E Electrical Requirements.
Chapter 15-16 Fire Protection Equipment.
Chapter 15-28 Hazardous Materials and Combustible Solids.
Chapter 15-26 Fume and Flammable Compressed Gases.
Chapter 15-24 Flammable Liquids.
(Prior code § 60-1; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 4-29-98, p. 66679, § 2; Amend Coun. J. 11-9-16, p. 36266, § 24; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 40; Amend Coun. J. 3-28-18, p. 74459, Art. II, § 17)
13-112-020  Special requirements.
   Every building, part of a building, structure or tank, hereafter designed, erected, altered or converted for the purposes of hazardous use unit shall comply with the general provisions in this Code and in addition shall comply with the special provisions of Chapters 15-4, 15-16, 15-20, 15-24, 15-26 and 15-28. The requirements of this Code shall apply to any hazardous use units used for industrial or storage purposes, except as otherwise provided in the above-mentioned chapters. Every existing building, structure or tank having an occupancy which would be classed as a hazardous use unit by the building provisions of this Code shall be so classified with respect to any additions, increase in capacity, or alteration thereof, and shall conform to the provisions of the above-mentioned chapters and of Chapter 13-196.
(Prior code § 60-2; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 11-9-16, p. 36266, § 24)
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