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Pennsylvania Adopts 2021 I-Codes into the UCC

The Pennsylvania Department of Labor & Industry (PA L&I) has approved the adoption of the 2021 International Codes (I-Codes), with amendments, into the Pennsylvania Uniform Construction Code (PA UCC). These updated regulations will take effect on January 1, 2026.

Key Implementation Details

  • Existing permitted projects: Projects already permitted by an Authority Having Jurisdiction (AHJ) may continue under their approved codes. Adoption of the 2021 I-Codes will not impose new requirements on previously approved construction.
  • Permit expirations: If a permit expires due to inactivity, any renewal must comply with the newly adopted 2021 I-Codes.
  • Projects in development (grace period): The 2018 I-Codes may still be used until July 1, 2026, provided a design or construction contract is executed before January 1, 2026. This reflects a six-month transition period.
  • Post–July 1, 2026: All new permit applications must comply with the 2021 I-Codes, regardless of contract date.
  • Accessibility requirements: Accessibility provisions will continue to reference Chapter 11, Appendix E, and Section 1009 of the 2018 IBC for the foreseeable future.
  • Philadelphia-specific guidance: The City of Philadelphia maintains its own code adoption information and should be consulted for local requirements.

If you have questions or need assistance navigating the transition between code cycles, our team is available to help and will continue to provide updates as they arise.

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