Pennsylvania

For Pennsylvania, energy code in force is International Energy Conservation Code of 2021; adopting authority is Pennsylvania Department of Labor and Industry; statute / rule citation is 34 Pa. Code 403.21, verified against its source on 2026-08-18.

State: Pennsylvania verified
Energy code in force: International Energy Conservation Code of 2021 verified
Adopting authority: Pennsylvania Department of Labor and Industry verified
Statute / rule citation: 34 Pa. Code 403.21 verified

Sourcepacodeandbulletin.gov

Verified2026-08-18

Review by2027-02-14

DatasetWhich energy code each US state enforces for new homes: the IECC edition (or state equivalent) actually in force, with effective dates and amendments, from the state rules themselves

What the source says

Pennsylvanias Alternative Residential Energy Provisions. (2) The prescriptive methods for all other buildings or structures contained in the International Energy Conservation Code of 2021

— pacodeandbulletin.gov, retrieved 2026-08-18

Source

pacodeandbulletin.govhttps://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/034/chapter403/s403.21.html

Last verified against source: 2026-08-18. Due for re-check by 2027-02-14. This page as Markdown · OKF bundle · full dataset as JSON.