On Mon, Feb 21, 2022 at 10:16 PM Building Electrification Team <stevemiller@comcast.net> wrote:
Sorry- I dont have any one document on NJ Building Codes.
OVERVIEW:
RESIDENCES: NJ adopts, into the NJ uniform building code, the international building code,  shepherded by the ICC international Code Council, which is updated every 3 years.
Each reissue has additional energy restrictions.  The ICC goal is net zero (or netzero ready) buildings by 2030 
The NJ BPU , Rutgers Green Building? organization, and NEEP (an independent organization) are looking at issuing "stretch codes" (more stringent for each update of the uniform building code). These stretch codes could be adopted by cities.
We understand that legislation is required to enable cities to adopt building code requirements which are more stringent than  the current issue of the NJ uniform building code.
BUSINESS/COMMERCIAL: there is ALREADY an International building code establishing net zero requirement "appendix" that can be adopted by cities.

Following are references

NJ Department of Community Affairs establishes the building codes
https://energyefficientcodes.org/iecc/ - a good overall source for the energy codes.
Above reference states 40% of U. S. GHG are from buildings
In NJ, 25% of total Green House Gas emissions are from the NJ buildings.  (2nd only to transportation GHG, which is 42% of total NJ GHG emissions).  Source:
https://www.nj.gov/dep/climatechange/docs/nj-gwra-80x50-report-2020.pdf#page=5 (figure ES.2, page 7)

Stretch building codes are discussed by the U.S. Dept of Energy https://www.energycodes.gov/stretch-codes

I have seen nothing public about the stretch codes being discussed by NEEP, Rutgers, and the NJ BPU.  I was invited to attend one review.

Zero Energy codes for commercial buildings are publicized in
https://codes.iccsafe.org/content/IECC2021P2/appendix-cc-zero-energy-commercial-building-provisions
International Energy Conservation Code empowers local communities to take action on climate change through building codes. Jurisdictions that adopt the Appendix (to the IECC) can make zero-net-carbon the standard for their commercial, institutional, and mid- to high-rise residential building operations.
https://www.iccsafe.org/building-safety-journal/bsj-hits/the-future-has-arrived-how-the-zero-code-will-help-build-a-carbon-neutral-future/
Zero Code Renewable Energy Appendix Added to the 2021 International Energy Conservation Code – ZERO Code

From: GREGORY GORMAN <ggorman07419@embarqmail.com> Sent: Wednesday, February 9, 2022 2:36 PM
To: Steve Miller <stevemiller@comcast.net>; Hitchcock, Christopher B. <christopher.hitchcock@ropers.com>; Miller Pat <patmiller@comcast.net>; sylvia kay <sylviakay222@gmail.com>
Subject: Building Electrification-NEEP Report
International Code Council (ICC) has committed to getting the model energy code to zero energy by 2030.  The new 2021 International Energy Conservation Code requires buildings to be about 10 percent more energy efficient than the previous edition.  NJ is reviewing these standards.  The 2021 provides increased envelope insulation values, zero energy appendixes, increases in lighting efficacy, a revised ERI approach, HVAC testing requirements, requirements complying with "flex packages," and other vital things residential and commercial updates. While electrification and decarbonization amendments were excluded, the 2021 IECC still provides a solid point for designers and builders to provide the market with zero energy-ready homes.  In 2022, NEEP will be providing concerted technical assistance to the region toward adopting this linchpin code.  https://neep.org/blog/top-10-year-end-codes-trends 

Steve Miller