As of Monday February 14th, 2022 Pennsylvania has adopted the 2018 ICC Building Codes and their referenced standards minus any amendments adopted by the UCC Review and Advisory Board.
Legally executed contracts for the design or construction of a building entered into prior to this date may still be constructed under the 2015 ICC Building Codes until August 14th, 2022.
A copy of that contract must be submitted with the permit application.
Additionally, Pennsylvania adopted Chapter 11 and Appendix E of the 2021 International Building Code, Sections of Chapter 4 of the 2021 International Plumbing Code, Section 307.1.4 of the 2021 International Swimming Pool and Spa Code, Section 306, 1101.2, 1505 and Appendix B of the 2021 International Existing Building Code and IIC/ANSI A 117.1-2017
Any questions should be presented to the Building Code Official at 215-968-2800 x 243