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The Making of the 2021 International Energy Conservation Code (IECC)

When I first started working at Steven Winter Associates, I didn’t know that one day I’d find myself involved in the development of codes and standards that impact how our buildings get built. I certainly don’t consider myself an expert, but I have learned a few things the hard way and thought they’d be worth sharing if you might be new to it.

So, here’s my very high-level summary of the code development process with respect to the 2021 International Energy Conservation Code (IECC), aka the “model” energy code. If you are looking for more detail, the ICC webpage has plenty of resources and a more detailed infographic than the one we’re showing and discussing here.

IECC Code Development Process Chart


Call to Action: Voting Open Until December 6th on the Changes Proposed to the 2021 IECC

ICYMI: The code change proposals for the 2021 IECC are open for voting by Governmental Member Voting Representatives (GMVR) from Monday, November 18th through Friday, December 6th, and your vote is instrumental in making buildings consume less energy! [Need a quick refresher on the code process? Check out our blog post here!]

Does your vote even matter?

Overall, there are not actually that many voters on a given proposal. In the energy proposals, last cycle, it ranged from about 200-400 voters per proposal, even though there were a total of 1,247 voters on the Group B codes, which includes the IECC.

IECC voting numbers

So a small handful of voters can entirely shape the future of the energy codes that dictate how energy efficient our buildings will be! If history repeats itself, while some online voters tend to align with the Committee, many online voters align their votes with those cast by their fellow ICC voters at the Public Comment Hearings. This happened 81% of the time in 2016. Unlike 2016, in this cycle all the electronic votes cast during the Public Comment Hearings will be rolled into the online vote tally (although those voters can still change their vote).


2016 New York Energy Codes: Residential Section

By Steve Klocke, Senior Sustainability Consultant

A week has passed since the new energy code went into effect in New York State and New York City. Did you miss it? Hopefully not, but we thought it might be helpful to review some of the new requirements in the residential section (stay tuned for future posts on the commercial section).

Attached Single Family

Attached single-family dwellings follow Residential section.

In case you need a refresher on what constitutes a residential building, we’re talking about “detached one- and two-family dwellings and multiple single-family dwellings (townhouses) as well as Group R-2, R-3 and R-4 buildings three stories or less in height above grade plane.” Here are the documents you’ll need:
1. 2015 International Energy Conservation Code (IECC)
2. 2016 Supplement to the New York State Energy Conservation Construction Code (NYSECC)
3.2016 New York City Energy Conservation Construction Code (NYCECC)

New York City did us a favor and put everything into one document, but we weren’t so lucky with the state code – you’ll have to cross reference the supplement with IECC (links 1 and 2 above). All of the residential codes are now denoted with an “R” prefix (as compared to “C” for commercial).