# International Building Code

> The 2009 International Building Code, adopted into law under the Pennsylvania Uniform Construction Code. Establishes minimum requirements for building systems through prescriptive and performance provisions.

- Canonical: https://harth.build/resources/building-codes/us-states/pennsylvania/ibc-2009/
- Last updated: 2026-06-23

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## Direct answer and reference scope

International Building Code is presented here as a reference within the IBC 2009 collection for Pennsylvania. The 2009 International Building Code, adopted into law under the Pennsylvania Uniform Construction Code. Establishes minimum requirements for building systems through prescriptive and performance provisions. Use the [Pennsylvania Department of Labor and Industry](https://www.pa.gov/agencies/dli/programs-services/labor-management-relations/bureau-of-occupational-and-industrial-safety/uniform-construction-code-home) to confirm the code edition currently adopted for the project, and compare the model text with state amendments, local amendments, effective dates and the permit authority's interpretation. The [ICC code library](https://codes.iccsafe.org/codes) is the model-code publication path. This Harth page is a searchable reference transcription, not an official code publication, legal opinion or confirmation that this edition controls a particular address. Record the project jurisdiction, application date, occupancy, construction type and amendment set before relying on a section. Where this page conflicts with an official publication or the authority having jurisdiction, the official source controls.

_Authored and prepared by Harth. Review scope: official verification path added; code text and current local applicability have not been independently reviewed._

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The 2009 IBC was the edition adopted under Pennsylvania's Uniform Construction Code for buildings other than one- and two-family dwellings during its adoption period. The full text below is reproduced from the edition as adopted into law, sourced from public.resource.org. It covers how buildings are classified, sized, and made safe to occupy.

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