Building Codes

New Base and Accessibility Codes

The 2018 Base and 2021 Accessibility Codes are to be adopted under the PCCA/UCC.  For more information please see PLI’s Guidelines for the Deadline for 2015 Base and 2018 Accessibility Codes and 2018 Base and 2021 Accessibility Code Adoption.

Uniform Construction Code

Construction in Pennsylvania, including the City of Pittsburgh, is regulated by the Pennsylvania Construction Code Act or PA Act No. 45 of 1999, which is also commonly referred to as the Uniform Construction Code (UCC).  The UCC adopts, in whole or part, the International Code Council’s (ICC) I-Codes. 

Current Codes

The Pennsylvania Department of Labor and Industry is responsible for publishing UCC Regulations. Section 403.21 of UCC Regulations identifies adopted codes, refer to this excerpt which highlights the adopted codes.  Please note that the 2021 IBC references the 2017 ICC A117.1 Accessible and Usable Buildings and Facilities.

Pittsburgh Amendments

The City of Pittsburgh's adoption and amendment of the UCC is documented under Section 1002 of the Pittsburgh City Code.  These local amendments remain applicable as the UCC is updated by the Commonwealth.  While the City Ordinances reference specific 2003 I-code code sections, these amendments are enforced by PLI based on the code provision and/or topic.

Plumbing Code

Please note that PLI does not enforce the plumbing code provisions of the UCC.  Please see Allegheny County Health Department’s Plumbing Program for plumbing code permits and regulations.

Copies of Codes and Standards

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