Building Code Glossary
Airport: Building Code Definition
How the IFC 2009 define airport, 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
Airport is a defined term in the International Fire Code (IFC) 2009, in Aviation Facilities. The code's own words are: “An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater than 6.6 feet (2012 mm), and any appurtenant areas that are used or intended for …” No other I-Code in this corpus defines it, so the IFC 2009 definition is the one to work from. The term is used in 11 chapters of this corpus, most often in Aviation Facilities (IFC 2009), Special Detailed Requirements Based on Use and Occupancy (IBC 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.
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?
Airport — IFC 2009, Aviation Facilities:
An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater than 6.6 feet (2012 mm), and any appurtenant areas that are used or intended for use for airport buildings and other airport facilities.
What must be verified before using this guidance?
Airport is defined once in this corpus, in the Aviation Facilities chapter of the International Fire Code (IFC) 2009:
An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater than 6.6 feet (2012 mm), and any appurtenant areas that are used or intended for use for airport buildings and other airport facilities.
Where airport is used in the code
The term appears in 11 chapters of the 2009 I-Codes hosted here. The chapters that lean on it hardest are the ones to read next.
| Chapter | Code | Mentions |
|---|---|---|
| Aviation Facilities | IFC 2009 | 27 |
| Special Detailed Requirements Based on Use and Occupancy | IBC 2009 | 22 |
| Fire Protection Systems | IFC 2009 | 15 |
| Fire Protection Systems | IBC 2009 | 11 |
| Accessibility | IBC 2009 | 7 |
| Electrical | IBC 2009 | 4 |
| Building Services and Systems | IFC 2009 | 4 |
| Definitions | IFC 2009 | 4 |
| Use and Occupancy Classification | IBC 2009 | 2 |
| Flammable and Combustible Liquids | IFC 2009 | 1 |
| Definitions | IPC 2009 | 1 |
The term in use
How the code actually writes about airport, quoted from the 2009 text hosted here:
Use ofa fire extinguisher under any circumstances shall be reported to the manager of the airport and the fire code official immediately after use.
Airport traffic control towers shall be constructed to comply with the height and area limitations of Table 412.3.2.
Airport traffic control towers shall be provided with an automatic smoke detection system installed in accordance with Section 907.2.22.
Airport compared with Heliport
These two are the closest pair in the 2009 I-Codes: about 53 per cent of their defining words are the same. The code states both and compares neither, so the difference is worth naming.
| Wording unique to it | |
|---|---|
| Airport (IFC 2009) | aircraft, overall, length, greater, 39, feet, 11, 887, mm, exterior, fuselage, width |
| Heliport (IBC 2009) | water, helicopters, heliport |
Everything else in the two definitions is shared. If a project turns on which of the two applies, those words are the whole of the test — and a local amendment that edits one of them without editing the other moves the boundary between airport and heliport.
Airport: 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 IFC | Aviation Facilities | |
| Re-check the requirement that uses it | Aviation Facilities (IFC 2009) | |
| Re-check the requirement that uses it | Special Detailed Requirements Based on Use and Occupancy (IBC 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) | |
| 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
- Hood: Building Code Definition
- Fire Code Official: Building Code Definition
- Agent: Building Code Definition
- Vessel: 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 airport?
The International Fire Code (IFC) 2009 defines it in Aviation Facilities as: “An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater than 6.6 feet (2012 mm), and any appurtenant areas that are used or intended for use for airport buildings and other airport facilities.” 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 airport?
In this corpus the term is used across 11 chapters, led by Aviation Facilities in the IFC 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 airport?
In the 2009 I-Codes hosted here it is a defined term rather than a description. The IFC 2009 states, in Aviation Facilities: “An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater than 6.6 feet (2012 mm), and any appurtenant areas that are used or intended for …” It is defined in 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 definition of a terminal building?
Building is a separate defined term. The IBC 2009 defines it as: “Any structure used or intended for supporting or sheltering any use or occupancy.” That is not the same as airport, which the IFC 2009 defines as “An area of land or structural surface that is used, or intended for use, for the landing and taking off of aircraft with an overall length greater than 39 feet (11 887 mm) and an overall exterior fuselage width greater …” — read both before applying either, and confirm the wording in the edition your jurisdiction has adopted.
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