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2021 I-Code transition materials

Beginning in January 2026, all new permit applications must conform to the 2021 I-Codes. This page includes forms and documents to prepare for the transition.

Name Description Released Format
2021 I-Code- Q&A PDF Questions and answers regarding the 2021 I-Code transition. January 24, 2025
2021 ICC Code Adoption Final Report PDF This report is issued by the Pennsylvania Department of Labor and Industry Review and Advisory Council for modifications to the 2021 I-Codes, to be adopted throughout PA as part of the Uniform Construction Code. September 20, 2024
2021 IPC Changed Sections PDF This document lists sections that were changed under the 2021 International Plumbing Code. September 20, 2024
2018 Philadelphia Plumbing Code Changes PDF This document provides guidance that highlights the impacts of the 2021 changes and proposed local changes to the 2018 Philadelphia Plumbing Code. September 20, 2024
Proposed Phila Changes to the 2021 IPC Provisions PDF This document provides recommendations by the Plumbing Advisory Board (PAB) to better accommodate local conditions. This document excludes those changes already adopted by ordinance. September 20, 2024
2021 I-Code changes webinar slides PDF These slides provide an overview of the timeline, what to expect in the coming year, and examples of significant changes from the 2021 I-Code adoption. December 18, 2024
Part 1: 2021 Building Code, Existing Building Code and Accessibility Provisions PDF These slides presented on May 15, 2025, provide an overview of the significant changes to the Building Code, Existing Building Code, and the Accessibility provisions. May 15, 2025
What are the significant changes between the 2018 and 2021 International Existing Building Code (IEBC)? PDF May 15, 2025
What are the significant changes between the 2018 and 2021 International Building Code (IBC)? PDF May 15, 2025
What are the significant changes between the 2018 and 2021 International Residential Code (IRC)? PDF June 6, 2025

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