Skip to content
NJ · DCA

UCC Energy Subcode (IECC/2021)

N.J.A.C. 5:23-3.18

Adopts the 2021 International Energy Conservation Code (IECC/2021) as New Jersey's energy subcode, with commercial buildings (all buildings other than low-rise residential) complying via ASHRAE Standard 90.1-2019 — the IECC commercial provisions are deleted in this section — and low-rise residential buildings (one- and two-family dwellings and multifamily of three stories or less) complying via the residential IECC/IRC energy provisions. Sets minimum energy-efficiency requirements for the building thermal envelope, mechanical systems, lighting, and service water heating in new construction and applicable alterations.

Effective · 2024-07-23
Status · active
Subject · building code

Search the record

Look up any property — free

Search any address to see violations, permits, the owner of record, tax, and more — no account needed.

Who must comply

ownerdeveloperlandlordcontractor

Track this rule across your portfolio.

Pin a building and we'll surface every amendment, effective-date change, and filing deadline as it happens.

UCC Energy Subcode (IECC/2021) · NJ · RegWatch