The 2024 International Codes® (I-Codes®) have undergone
substantial formatting changes as part of the digital transformation strategy
of the International Code Council® (ICC®) to improve the user experience. The
changes, promoting a cleaner, more modern look and enhancing readability and
sustainability, include:

• Single
      column text format and modernized font styles improves readability


• QR
      Codes replace vertical margin sidebars and arrows to identify code changes
      more accurately


• Shading
      for table headers and notes improves locating tables and applicable notes


• Grouping
      of associated content brings tables and figures immediately after the
      parent section


• Users
      have capability to validate authenticity of their book and register it
      with the ICC to receive incentives.

The 2024 IEBC encourages the use and reuse of existing
buildings. This code covers repair, alteration, addition and change of
occupancy for existing buildings. and historic buildings, while achieving
appropriate levels of safety without requiring full compliance with the new
construction requirements contained in the other I-Codes. Key changes in the
2024 IEBC® include:

• Occupiable
      roofs. The concept of occupiable roofs requirements have been
      incorporated in a variety of locations to correlate with the IBC.


• Storm
      Shelters. The storm shelter requirements have been coordinated
      with revisions in the IBC and ICC 500. The provisions have also been
      clarified that where constructed shall be comply with IBC Section 423 and
      ICC 500.


• Risk
      category increase. Clarifies how risk categories should be
      assigned for structural design where the addition and the existing
      building have different uses. The provisions in the Prescriptive and Work
      Area methods.


• Smoke
      compartment requirements. Existing Group I-1, condition 2
      occupancies and ambulatory care facilities may be required to divide
      stories into no fewer than two smoke compartments for more substantial
      additions and alterations.


• Adult
      Changing stations. Where additional toilet facilities are being
      added and IBC Section 1110.4.1 would require adult changing stations,
      Section 306.7.15 would require that at least one accessible family or
      assisted use toilet room is required to contain one.


• Exterior
      wall covering and wall envelopes sprinkler requirement. Section
      309.2.1 has been added to require that if combustible exterior wall
      envelopes or coverings are installed on a high-rise building the building
      must be equipped throughout with a sprinkler system. There are some
      exceptions for smaller installations and when only a combustible water
      resistive barrier is installed.


• Performance
      method renumbering. Though editorial in nature, Chapter 13 was
      renumbered to assist in the useability of that method.


• Owners’
      responsibility at construction sites. Section 1502 was added to
      address the need for the owner to properly develop, implement and maintain
      a site safety plan during construction. A site safety director must be
      designated and is responsible to conduct daily fire safety inspections.


• Non
      required automatic sprinkler system. A section has been added to
      Chapter 10 under the change of occupancy classification requirements to
      allow the removal of a nonrequired existing automatic sprinkler system.
      This section includes a number of criteria that must be met.


• APPENDIX
      E TEMPORARY EMERGENCY USES. This new appendix was created to
      provide guidance for designers, engineers, architects and fire and
      building officials to allow temporary emergency uses of existing buildings
      with respect to the minimum code requirements. This appendix is intended
      to serve as a template or checklist for use during an emergency that
      references the relevant code requirements.