FireApproved

Pennsylvania

Pennsylvania

Statewide Pennsylvania requires 2021 IWUIC.

Construction sources: reviewed Last verified 2026-08-27

One local briefing, built from separate evidence layers: what the state has published, where an instrument is documented to apply, what still depends on a map or project fact, and which plant records are documented in Pennsylvania. A ZIP personalizes priority; it does not decide a parcel boundary.

What is established here

Pennsylvania’s Uniform Construction Code incorporates the 2021 IWUIC, effective 1 January 2026. Fourteen exact product-semantic paths from Classes 1–3 are normalized here; the official map, assigned class, project scope, and building-official confirmation still decide what applies.

Pennsylvania · active application documented

Pennsylvania Uniform Construction Code incorporates IWUIC 2021

34 Pa. Code § 403.21(a)(11) adopts and incorporates by reference the International Wildland-Urban Interface Code of 2021 as part of the Uniform Construction Code. The November 7, 2025 amendment is effective January 1, 2026, and the State's final report says the 2021 IWUIC was adopted without modification. Whether a given lot is in a wildland-urban interface, which ignition-resistant class applies, and whether a given project type is in scope still depend on the official map and the building official.

Scope: statewide · effective 2026-01-01

Still verify with the authority

  • Check the parcel in the official hazard map.
  • Obtain the official site hazard classification.
  • Confirm that the project type and permit scope trigger the provision.
  • Confirm the result with the authority having jurisdiction.

14 joined requirements · 34 Pa. Code § 403.21 Uniform Construction Code · source accessed 2026-08-27

Open the Build rules for Pennsylvania →

What is not established

A ZIP in Pennsylvania is a postal match, not a parcel, map, or permit. No city or county briefing is open here yet.

What differs here

Object records that name Pennsylvania (not reprinted here):

2 more on the JSON twin.

Child-place and sibling claims stay on those place pages, their object URLs, and the JSON twin.

Plants documented in Pennsylvania

State distribution, native range, invasive status, hardiness, and fire evidence answer different questions. None is a planting approval. The list itself is on Grow — this page carries the aggregates.

Fire-resistant 482 Keep away 136 Documented conflict 45 Awaiting evidence 216

879 plant records documented in the state. 0 explicitly document Pennsylvania as native range. 204 carry an invasive or noxious flag applying here. 0 fire-evidence sources name Pennsylvania in publication scope.

Plant groups in Pennsylvania →

Human page and machine twin

This briefing is the place answer. The claim graph lives on object pages and the JSON twin. Methodology · Pennsylvania JSON · place node JSON