Code reference · NY · NJ · PA · MD · DE
The building and fire codes in force in each state DGA works in, the date each one took effect, the transition rules, and who reviews your submittal. Checked against the adopting agencies in October 2026.
Edition, effective date and reviewing authority for each jurisdiction. Local amendments are not listed here.
| Jurisdiction | Building code | In effect | Fire code | Reviews |
|---|---|---|---|---|
| New York State (outside NYC) | 2025 Uniform Code, based on the 2024 I-Codes | Dec 31, 2025 | 2025 Fire Code of New York State | Local code enforcement officials |
| New York City | 2022 NYC Construction Codes | Nov 7, 2022 | 2022 NYC Fire Code, FDNY Rules (3 RCNY) | DOB; FDNY |
| New Jersey | UCC (N.J.A.C. 5:23), 2024 I-Codes, NJ editions | Aug 17, 2026 | Uniform Fire Code (N.J.A.C. 5:70), 2018 IFC basis | Municipal construction and fire protection subcode officials |
| Pennsylvania | UCC, 2021 I-Codes with PA amendments | Jan 1, 2026 | No statewide fire code | Municipal or third-party code officials; L&I |
| Maryland | Building Performance Standards, 2021 IBC | May 29, 2023 | State Fire Prevention Code: NFPA 1 and 101, 2024 editions (Jun 23, 2025) | County building officials; state or local fire marshal |
| Delaware | No statewide building code. IBC adopted by county or city: 2021 (New Castle, Sussex), 2018 (Kent, Wilmington) | Varies | State Fire Prevention Regulations, 2026 ed.: NFPA 1 and 101, 2024 editions (Jan 1, 2026) | State Fire Marshal (Wilmington Fire Marshal inside the city); county or town building officials |
Applies everywhere in the state except New York City. Enforced by the city, town, village or county.
| Code | 2025 Uniform Fire Prevention and Building Code. Incorporates nine of the 2024 I-Codes with New York amendments. |
| Effective | December 31, 2025. Permit applications made on or after that date must comply. Replaces the 2020 Uniform Code. |
| Reviews | Local code enforcement officials. The Department of State, Division of Building Standards and Codes, administers the code. |
| Variances | Petition to the Department of State under 19 NYCRR Part 1205. The local code enforcement official is asked for its position, which can decide whether the petition needs a board hearing. |
| Note | Residential foundation designs based on the 2020 Residential Code can no longer be used for new permits. |
The city writes and enforces its own construction and fire codes. The state Uniform Code does not apply in the five boroughs.
| Construction codes | 2022 NYC Construction Codes, effective November 7, 2022. |
| Which edition | Set by the construction document approval date. Approved before November 7, 2022: 2014 codes. On or after: 2022 codes. |
| Fire code | 2022 NYC Fire Code (Local Law 47 of 2022), effective April 15, 2022, with the FDNY Rules (3 RCNY). |
| Reviews | Department of Buildings through DOB NOW: Build. FDNY reviews fire alarm and other fire protection submittals and witnesses acceptance tests. One approval does not cover the other. |
| Note | Special inspections (TR1) are filed under the code that applies to the job. |
One statewide Uniform Construction Code, enforced by each municipality’s construction office, with a separate fire protection subcode review.
| Code | Uniform Construction Code (N.J.A.C. 5:23), now on the 2024 I-Codes, New Jersey editions. The Barrier Free Subcode references 2024 IBC Chapter 11 and ICC A117.1-2017. |
| Effective | August 17, 2026, with a six-month grace period after adoption. Permits issued under the earlier edition continue while they remain valid. |
| Existing buildings | Rehabilitation Subcode (N.J.A.C. 5:23-6) for alterations, additions and changes of use. |
| Fire code | Uniform Fire Code (N.J.A.C. 5:70) for buildings in use. Still aligned with the 2018 IFC; the 2026 update did not change it. |
| Reviews | Municipal construction official and fire protection subcode official. Rules are written by the DCA Division of Codes and Standards. |
| Note | During the grace period, state the edition on the cover sheet and use it consistently throughout the submittal. |
A statewide Uniform Construction Code, enforced locally in most places. Philadelphia runs its own code program.
| Code | Uniform Construction Code, updated to the 2021 I-Codes with Pennsylvania amendments. |
| Effective | January 1, 2026. Contracts signed before then could use the 2018 I-Codes until July 1, 2026. Since then, all new permit applications use the 2021 codes. |
| Accessibility | Still enforced from the 2018 IBC (Chapter 11, Appendix E and Section 1009). The 2021 accessibility provisions are not enforced. |
| Reviews | Over 90% of municipalities enforce the UCC themselves, with their own staff or a certified third-party agency. In opt-out municipalities, L&I handles commercial work. L&I alone covers elevators and state-owned buildings. Philadelphia L&I administers the Philadelphia Code. |
| Note | Confirm whether the reviewer is the municipality or a third-party agency before you submit. Submittal requirements differ. |
Two separate codes: the Building Performance Standards for construction and the State Fire Prevention Code for fire and life safety.
| Building code | Maryland Building Performance Standards: 2021 IBC, IRC and IECC with state amendments, effective May 29, 2023. Local jurisdictions had to enforce them by May 29, 2024, and many add local amendments. |
| Fire code | State Fire Prevention Code (COMAR 29.06.01): NFPA 1 and NFPA 101, 2024 editions, with Maryland amendments, effective June 23, 2025. |
| Reviews | County and municipal building officials, such as Montgomery County DPS and Prince George’s County DPIE. The Office of the State Fire Marshal or the local fire marshal reviews fire and life safety. |
| Note | A project has to meet both the IBC-based building code and the NFPA 101-based fire code. Where they differ, design to both. |
One statewide fire code, enforced by the Office of the State Fire Marshal. There is no statewide building code: counties and some cities adopt their own, so the IBC edition depends on where the site is.
| Fire code | Delaware State Fire Prevention Regulations (Regulation 701), 2026 edition: NFPA 1 and NFPA 101, 2024 editions, with Delaware amendments. |
| Effective | January 1, 2026. The State Fire Marshal applies the 2026 edition to projects submitted on or after December 31, 2025. |
| System standards | NFPA 13 (2025), NFPA 14 (2024), NFPA 20 (2025), NFPA 72 (2025) and NFPA 25 (2023). The full list is in Regulation 701, Chapter 7. |
| Building code | New Castle County: 2021 IBC, IRC and IEBC, effective January 1, 2024. Sussex County: 2021 IBC and IRC, effective January 1, 2023. Kent County: 2018 IBC and IRC, effective October 5, 2020. City of Wilmington: 2018 ICC codes. Other towns adopt their own editions. |
| Reviews | The Office of the State Fire Marshal reviews site and building plans, with offices in New Castle, Kent and Sussex counties. Inside Wilmington, the City of Wilmington Fire Marshal’s Office reviews. In towns that use the State Fire Marshal, the building permit is not issued until the fire approval is signed, and the fire marshal’s final inspection comes before the certificate of occupancy. |
| Review time | The State Fire Marshal’s agreements with towns set 15 working days to complete technical review of a normal submission. |
| Note | A sprinklered building’s plan application includes the Preliminary Sprinkler Form; sprinkler, fire alarm and suppression drawings are separate submittals. Confirm the building code edition with the county or town before design. |
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General reference, not a code determination for any project. Codes, local amendments and transition rules change; confirm with the authority having jurisdiction.
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