Philadelphia has passed a bill to adopt the 2018 International Codes on June 6th with exception to the Plumbing Code.

The Philadelphia Plumbing Code still remains the adopted plumbing code.  These codes become effective on 10/1/2018.   https://phila.legistar.com/LegislationDetail.aspx?ID=3359753&GUID=CCD0165B-C68C-4194-9CBD-1BA77D3D7604&Options=Advanced&Search