Building Code Glossary
Exit Discharge: Building Code Definition
How the IBC 2009, IFC 2009 define exit discharge, where the wording differs, and which chapters depend on the term.
On this page
Last updated September 7, 2026 · Definitions quoted from the 2009 International Codes as transcribed in this site's building-codes collection, with the source chapter linked for each quotation. Usage counts are computed over the chapters hosted here, one copy per code. The [ICC code library](https://codes.iccsafe.org/codes) publishes the current model text and the [ICC adoption maps](https://www.iccsafe.org/advocacy/code-adoption-maps/) show which edition a jurisdiction has adopted; those sources control.
Direct answer
Exit discharge is a defined term in the International Building Code (IBC) 2009, in Means of Egress. The code's own words are: “That portion of a means of egress system between the termination of an exit and a public way” The IFC 2009 carries the same definition word for word, so the term means the same thing in each. The term is used in 15 chapters of this corpus, most often in Means of Egress (IBC 2009), Means of Egress (IFC 2009), Fire Protection Systems (IFC 2009). These pages transcribe the 2009 model text; verify the definition against the edition and amendments your authority having jurisdiction has adopted. Record the jurisdiction, the adopted edition, the application date and any local amendment that rewrites the definition before you use it on a live project, because a term redefined by amendment changes every requirement that depends on it.
Content and cited inputs reviewed by Scott Barrington, Harth founder and architectural technology specialist · Published 2026-09-07 · Updated 2026-09-07.
What does this term mean?
Exit Discharge — IBC 2009, Means of Egress:
That portion of a means of egress system between the termination of an exit and a public way
What must be verified before using this guidance?
Two of the I-Codes in this corpus define Exit Discharge, in identical words.
| Code | Where it is defined | Definition |
|---|---|---|
| IBC 2009 | Means of Egress | That portion of a means of egress system between the termination of an exit and a public way |
| IFC 2009 | Means of Egress | That portion of a means of egress system between the termination of an exit and a public way: |
Where exit discharge is used in the code
The term appears in 15 chapters of the 2009 I-Codes hosted here. The chapters that lean on it hardest are the ones to read next.
| Chapter | Code | Mentions |
|---|---|---|
| Means of Egress | IBC 2009 | 89 |
| Means of Egress | IFC 2009 | 84 |
| Fire Protection Systems | IFC 2009 | 38 |
| Fire Protection Systems | IBC 2009 | 35 |
| Special Detailed Requirements Based on Use and Occupancy | IBC 2009 | 14 |
| Highly Toxic and Toxic Materials | IFC 2009 | 11 |
| Construction Requirements for Existing Buildings | IFC 2009 | 10 |
| Definitions | IFC 2009 | 5 |
| Building Services and Systems | IFC 2009 | 4 |
| Elevators and Conveying Systems | IBC 2009 | 3 |
| Use and Occupancy Classification | IBC 2009 | 3 |
| Emergency Planning and Preparedness | IFC 2009 | 3 |
3 further chapters mention the term.
The term in use
How the code actually writes about exit discharge, quoted from the 2009 text hosted here:
The general requirements specified in Sections 1003 through 1013 shall apply to all three elements of the means of egress system, in addition to those specific requirements for the exit access, the exit and the exit discharge detailed elsewhere in this chapter.
The means of egress, including the exit discharge, shall be illuminated at all times the building space served by the means of egress is occupied.
For Group A-I, A-2, A-3 and A-4 occupancies, the automatic sprinkler system shall be provided throughout the floor area where the Group A-I, A-2, A-3 or A-4 occupancy is located, and in all floors from the Group A occupancy to, and including, the nearest level of exit discharge serving the Group A occupancy.
The terms exit discharge is built out of
The definition above leans on 3 other defined terms. Each carries its own code definition, and a local amendment to any of them changes what exit discharge covers:
- Means OF Egress — IBC 2009: A continuous and unobstructed path of vertical and horizontal egress travel from any occupied portion of a building or structure to a public way A means of egress consists of three separate and distinct parts: the exit access, the exit …
- Public Way — IBC 2009: A street, alley or other parcel of land open to the outside air leading to a street, that has been deeded, dedicated or otherwise permanently appropriated to the public for public use and which has a clear width and height …
- System — IFC 2009: An assembly of equipment consisting of a tank, container or containers, appurtenances, pumps, compressors and connecting piping.
Exit Discharge: what to open, and in what order
Every row is a document this term depends on. The ICC code library and the ICC adoption maps cover the middle rows.
| Check | Where | Confirmed |
|---|---|---|
| Read the definition in the adopted IBC | Means of Egress | |
| Read the definition in the adopted IFC | Means of Egress | |
| Re-check the requirement that uses it | Means of Egress (IBC 2009) | |
| Re-check the requirement that uses it | Means of Egress (IFC 2009) | |
| Re-check the requirement that uses it | Fire Protection Systems (IFC 2009) | |
| Re-check the requirement that uses it | Fire Protection Systems (IBC 2009) | |
| Confirm the dependent definition | Means OF Egress | |
| Confirm the dependent definition | Public Way | |
| Confirm the dependent definition | System | |
| Local amendment to any of the above | Jurisdiction's amendment list |
A research aid, not a code determination. The authority having jurisdiction decides which edition and which amendments apply.
Where can you explore related guidance?
- Explore all glossary guidance
- Means OF Egress: Building Code Definition
- Public Way: Building Code Definition
- System: Building Code Definition
Sources and method
Definitions quoted from the 2009 International Codes as transcribed in this site's building-codes collection, with the source chapter linked for each quotation. Usage counts are computed over the chapters hosted here, one copy per code. The ICC code library publishes the current model text and the ICC adoption maps show which edition a jurisdiction has adopted; those sources control.
Source links
Frequently asked questions
What is the code definition of exit discharge?
The International Building Code (IBC) 2009 defines it in Means of Egress as: “That portion of a means of egress system between the termination of an exit and a public way” The 2009 model text is reproduced here; the definition that binds your project is the one in the edition your jurisdiction has adopted, as amended locally.
Which parts of the code depend on exit discharge?
In this corpus the term is used across 15 chapters, led by Means of Egress in the IBC 2009. Those are the sections whose scope moves if the definition is amended locally, so read them together with Chapter 2 rather than on their own.
What is the definition of an exit discharge?
In the 2009 I-Codes hosted here it is a defined term rather than a description. The IBC 2009 states, in Means of Egress: “That portion of a means of egress system between the termination of an exit and a public way” It is defined in IBC 2009, IFC 2009. Because it is a defined term, whatever the adopted edition says it means is what every section using it means — so check Chapter 2 of that edition and any local amendment before relying on this wording.
What is the difference between exit access and exit discharge?
In the 2009 I-Codes hosted here it is a defined term rather than a description. The IBC 2009 states, in Means of Egress: “That portion of a means of egress system between the termination of an exit and a public way” It is defined in IBC 2009, IFC 2009. It is not the same as Exit Access, which the IBC 2009 defines separately as “That portion of a means of egress system that leads from any occupied portion of a building or structure to an exit.” Because it is a defined term, whatever the adopted edition says it means is what every section using it means — so check Chapter 2 of that edition and any local amendment before relying on this wording.
What are the different levels of exit discharge in a building?
In the 2009 I-Codes hosted here it is a defined term rather than a description. The IBC 2009 states, in Means of Egress: “That portion of a means of egress system between the termination of an exit and a public way” It is defined in IBC 2009, IFC 2009. It is not the same as Building, which the IBC 2009 defines separately as “Any structure used or intended for supporting or sheltering any use or occupancy.” Because it is a defined term, whatever the adopted edition says it means is what every section using it means — so check Chapter 2 of that edition and any local amendment before relying on this wording.
Related pages
- Exit Access Doorway: Building Code Definition
Exit Access Doorway — IBC 2009 definition: A door or access point along the path of egress travel from an occupied room, area …
- Exit Access: Building Code Definition
Exit Access — IBC 2009 definition: That portion of a means of egress system that leads from any occupied portion of a …
- Exit Discharge, Level OF: Building Code Definition
Exit Discharge, Level OF — IBC 2009 definition: The story at the point at which an exit terminates and an exit discharge begins.
- Exit Enclosure: Building Code Definition
Exit Enclosure — IBC 2009 definition: An exit component that is separated from other interior spaces of a building or structure by …
- Exit, Horizontal: Building Code Definition
Exit, Horizontal — IBC 2009 definition: A path of egress travel from one building to an area in another building on approximately …
- Exit Passageway: Building Code Definition
Exit Passageway — IBC 2009 definition: An exit component that is separated from other interior spaces of a building or structure by …