On October 16, 2025, the Pennsylvania Independent Regulatory Review Commission (IRRC) reviewed and approved the rule making updating 34 Pa. Code, Part XIV, Chapters 401 and 403 (Pennsylvania UCC). The effect of this action is the update of the Uniform Construction Code of Pennsylvania, including the move to the 2021 International Codes as amended.
The expected effective date for the 2021 codes is January 1, 2026.
This will also be the effective date for the provisions of Section 304 (c) 4.
(4) Where a design or construction contract was signed before the effective date of regulations for a subsequent Uniform Construction Code or International Fuel Gas Code issued under this act, the permit may be issued under the Uniform Construction Code or International Fuel Gas Code in effect at the time the design or construction contract was signed if the permit is applied for within six months of the effective date of the regulation or the period specified by a municipal ordinance, whichever is less.(304 amended Oct. 25, 2017, P.L.356, No.36)
Walter G. M. Schneider III
PENNBOC Past President / UCC RAC Chair
Note: View more info about PA’s UCC RAC. ICC’s 2021 codes can be viewed in ICC’s Digital Code Library for free.