Pennsylvania
For Pennsylvania, chart as of is January 2024; ibc edition in force (from the state's own regulation) is 2021; irc edition in force (from the state's own regulation) is 2021; adopting regulation is 34 Pa. Code § 403.21; ibc edition is 18, recorded from its source on 2026-09-30; source re-checked 2026-10-10.
- State or territory
- Pennsylvania verified
- Chart as of
- January 2024
- IBC edition in force (from the state's own regulation)
- 2021 verified
- IRC edition in force (from the state's own regulation)
- 2021 verified
- Adopting regulation
- 34 Pa. Code § 403.21 our reading
- IBC edition
- 18 verified
- IRC edition
- 18 verified
- IFC edition
- 18 verified
- IMC edition
- 18 verified
- IPC edition
- 18 verified
- IFGC edition
- 18 verified
- IPMC edition
- X verified
- IEBC edition
- 18 verified
- ISPSC edition
- 18 verified
- ICCPC edition
- 18 verified
- IWUIC edition
- 18 verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Pennsylvania 18 18 18 18 18 18 18 18 X 18 18 18 18
— iccsafe.org, retrieved 2026-09-30
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
IBC edition in force (from the state's own regulation)
(a) The Department adopts and incorporates by reference the following codes as the Uniform Construction Code: (1) The provisions of Chapters 2—10, 12—29 and 31—35 of the ‘‘International Building Code of 2021,’’ except:
IRC edition in force (from the state's own regulation)
(7) The ‘‘International Residential Code of 2021,’’ except that:
— all from pacodeandbulletin.gov, retrieved 2026-09-30
Sources
- iccsafe.orghttps://www.iccsafe.org/wp-content/uploads/Master-I-Code-Adoption-Chart-1.pdf
- pacodeandbulletin.govhttps://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/034/chapter403/s403.21.html