# Audible Alarm Notification Appliance: Building Code Definition > How the IBC 2009, IFC 2009 define audible alarm notification appliance, where the wording differs, and which chapters depend on the term. - Canonical: https://harth.build/resources/glossary/audible-alarm-notification-appliance/ - Last updated: 2026-09-07 - Data source: 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. ## Key facts | Fact | Value | | --- | --- | | Defined in | IBC 2009, IFC 2009 (2009 editions transcribed in this corpus) | | Primary source | IBC 2009 Fire Protection Systems (model text, not a jurisdiction's adopted text) | | Chapters using the term | 4 (counted across the codes hosted here) | | Wording identical across codes | Yes (compare before citing one code's wording under another) | ## Direct answer Audible alarm notification appliance is a defined term in the International Building Code (IBC) 2009, in Fire Protection Systems. The code's own words are: “A notification appliance that alerts by the sense of hearing.” The IFC 2009 carries the same definition word for word, so the term means the same thing in each. The term is used in 4 chapters of this corpus, most often in Fire Protection Systems (IBC 2009), Fire Protection Systems (IFC 2009), Definitions (IBC 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](https://nz.linkedin.com/in/barrington), Harth founder and architectural technology specialist · Published 2026-09-07 · Updated 2026-09-07.* ## What does this term mean? **Audible Alarm Notification Appliance** — IBC 2009, Fire Protection Systems: > A notification appliance that alerts by the sense of hearing. ![Labeled code-term definition diagram: Audible Alarm Notification Appliance: Building Code Definition](https://efwwel0vyt9vy5so.public.blob.vercel-storage.com/images/glossary/audible-alarm-notification-appliance/diagram-1344.webp) *How the IBC 2009, IFC 2009 define audible alarm notification appliance, where the wording differs, and which chapters depend on the term.* ## What must be verified before using this guidance? Two of the I-Codes in this corpus define **Audible Alarm Notification Appliance**, in identical words. | Code | Where it is defined | Definition | | --- | --- | --- | | IBC 2009 | [Fire Protection Systems](https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/fire-protection-systems.md) | A notification appliance that alerts by the sense of hearing. | | IFC 2009 | [Fire Protection Systems](https://harth.build/resources/building-codes/us-states/rhode-island/ifc-2009/fire-protection-systems.md) | A notification appliance that alerts by the sense of hearing. | ## Where audible alarm notification appliance is used in the code The term appears in 4 chapters of the 2009 I-Codes hosted here. The chapters that lean on it hardest are the ones to read next. | Chapter | Code | Mentions | | --- | --- | --- | | [Fire Protection Systems](https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/fire-protection-systems.md) | IBC 2009 | 20 | | [Fire Protection Systems](https://harth.build/resources/building-codes/us-states/rhode-island/ifc-2009/fire-protection-systems.md) | IFC 2009 | 20 | | [Definitions](https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/definitions.md) | IBC 2009 | 1 | | [Definitions](https://harth.build/resources/building-codes/us-states/rhode-island/ifc-2009/definitions.md) | IFC 2009 | 1 | ## Audible Alarm Notification Appliance compared with Visible Alarm Notification Appliance These two are the closest pair in the 2009 I-Codes: about 82 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 | | --- | --- | | **Audible Alarm Notification Appliance** (IBC 2009) | hearing | | [Visible Alarm Notification Appliance](https://harth.build/resources/glossary/visible-alarm-notification-appliance.md) (IBC 2009) | sight | 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 audible alarm notification appliance and visible alarm notification appliance. ## The terms audible alarm notification appliance is built out of The definition above leans on 1 other defined term. Each carries its own code definition, and a local amendment to any of them changes what audible alarm notification appliance covers: - **[Appliance](https://harth.build/resources/glossary/appliance.md)** — IRC 2009: Utilization equipment, normally built in standardized sizes or types, that is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying, etc. ## Audible Alarm Notification Appliance: what to open, and in what order Every row is a document this term depends on. The [ICC code library](https://codes.iccsafe.org/codes) and the [ICC adoption maps](https://www.iccsafe.org/advocacy/code-adoption-maps/) cover the middle rows. | Check | Where | Confirmed | | --- | --- | --- | | Read the definition in the adopted IBC | Fire Protection Systems | | | Read the definition in the adopted IFC | Fire Protection Systems | | | Re-check the requirement that uses it | Fire Protection Systems (IBC 2009) | | | Re-check the requirement that uses it | Fire Protection Systems (IFC 2009) | | | Re-check the requirement that uses it | Definitions (IBC 2009) | | | Re-check the requirement that uses it | Definitions (IFC 2009) | | | Confirm the dependent definition | Appliance | | | 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](https://harth.build/resources/glossary.md) - [Appliance: Building Code Definition](https://harth.build/resources/glossary/appliance.md) - [Automatic: Building Code Definition](https://harth.build/resources/glossary/automatic.md) - [Zone: Building Code Definition](https://harth.build/resources/glossary/zone.md) - [Automatic Sprinkler System: Building Code Definition](https://harth.build/resources/glossary/automatic-sprinkler-system.md) ## 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](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. ### Source links - [codes.iccsafe.org](https://codes.iccsafe.org/codes) - [iccsafe.org](https://www.iccsafe.org/advocacy/code-adoption-maps/) ## Frequently asked questions ### What is the code definition of audible alarm notification appliance? The International Building Code (IBC) 2009 defines it in Fire Protection Systems as: “A notification appliance that alerts by the sense of hearing.” 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. ### What is a fire alarm notification appliance? Fire Alarm is a separate defined term. The IFC 2009 defines it as: “The giving, signaling or transmission to any public fire station, or company or to any officer or employee thereof, whether by telephone, spoken word or otherwise, of information to the effect that there is a fire at or near the place” That is not the same as audible alarm notification appliance, which the IBC 2009 defines as “A notification appliance that alerts by the sense of hearing.” — read both before applying either, and confirm the wording in the edition your jurisdiction has adopted. ### What is an Audible alarm system? System is a separate defined term. The IFC 2009 defines it as: “An assembly of equipment consisting of a tank, container or containers, appurtenances, pumps, compressors and connecting piping.” That is not the same as audible alarm notification appliance, which the IBC 2009 defines as “A notification appliance that alerts by the sense of hearing.” — read both before applying either, and confirm the wording in the edition your jurisdiction has adopted. --- - Continue in Harth (open this topic in the Harth agent): https://app.harth.build/agent?context=%2Fresources%2Fglossary%2Faudible-alarm-notification-appliance%2F - View this page in a browser: https://harth.build/resources/glossary/audible-alarm-notification-appliance/ - All resources for agents: https://harth.build/llms.txt