New Jersey’s 2024 Code: What Changed on Aug 17, 2026
New Jersey moved to the 2024 International Codes on August 17, 2026. What changed, the grace period to February 17, 2027, and what it means for your drawings.
Northeast & Mid-Atlantic
New Jersey Permit & Stamping Requirements
Requirements vary by region, code cycle, seismic zone, and wind or snow load. Here is what typically drives design for New Jersey projects.
What Drives Design in New Jersey
New Jersey projects are governed primarily by formal plan review and special inspections.
- ✓ Special inspection program coordination
- ✓ Full MEP package for commercial filings
- ✓ Plan review comment response and expediting
Exact code edition and local amendments vary by city and county. We confirm the specific requirements for your address before drafting.
Current Building Code
Code in effect in New Jersey
New Jersey enforces one statewide Uniform Construction Code, administered by the Department of Community Affairs. On August 17, 2026 it moved to the 2024 International Codes (New Jersey editions), the 2023 National Electrical Code and the 2024 National Standard Plumbing Code, with a six-month grace period that runs to February 17, 2027. Energy follows the 2024 IECC for low-rise residential buildings and ASHRAE 90.1-2022 for commercial work.
What to plan for
- ✓ The code is the same statewide: towns enforce it but do not write their own amendments to the model codes.
- ✓ A six-month grace period runs to February 17, 2027, which can let a project already designed to the previous edition proceed under it. Confirm with your construction official.
- ✓ Plumbing follows the National Standard Plumbing Code, not the International Plumbing Code.
Code information last verified October 2026. Codes change, so we confirm the edition in force for your address before drafting.
Frequently asked questions about New Jersey permits
Which code applies to my New Jersey project?
Projects submitted on or after August 17, 2026 fall under the 2024-based Uniform Construction Code. During the grace period to February 17, 2027, a project designed to the previous edition may still be accepted under it, so confirm with your local construction official.
Do New Jersey towns have their own building codes?
No. The Uniform Construction Code applies statewide. Your town's construction office enforces it and reviews your drawings, but it does not write its own amendments to the model codes.
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