This page was updated March 17, 2021

The public comment period for the Ithaca Energy Code Supplement (IECS) and the IECS Ordinance has closed. Adoption of the IECS is being considered at the City of Ithaca and the Town of Ithaca.
See below for document downloads and additional information.


A local energy code supplement with requirements above and beyond the New York State Energy Conservation Construction Code.
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IECS-enabling legislation for the City of Ithaca that enacts the IECS as the regulatory document containing requirements for compliance. The Town of Ithaca will not be adopting an ordinance, but will be incorporating similar language into the IECS.

Updated: This document now contains all written comments received during the January/February 2021 public comment period.

Updated 3/17/21: A document summarizing comments, and the responses to those comments, relating to the current IECS draft (01-28-21).

A document summarizing comments and responses relating to the previous IECS draft (08-08-19), which informed the current draft (01-28-21).
This document is best viewed in Excel. HTML viewing is not recommended.

Note: An IECS Reference Manual, which contains non-essential information to help understand and use the IECS, will be completed and posted at a future date.


The City of Ithaca and the Town of Ithaca have been working since 2017 on the Ithaca Energy Code Supplement (IECS, previously the Green Building Policy), which contains code requirements for new buildings and major renovations that will substantially reduce GHG emissions while emphasizing affordability.

The Town Board and the City Common Council have provided guidance and approval of previous drafts of the IECS, which have also undergone significant public review. Over the last several months, City and Town of Ithaca Planning and Codes staff, attorneys, and elected officials have contributed to the development of the IECS and the IECS Ordinance. The goal is to maintain common regulations that will be adopted by both the Town and the City. 

The City of Ithaca held a public hearing in February. A Town of Ithaca public hearing will be scheduled at a later date. Both municipalities are considering adoption of the IECS this spring.

Upcoming Meetings

All meetings are open to the public. Many have time set aside for verbal comments from any interested community members. You do not have to be a Town/City resident to speak. Written comments are also accepted in advance of the meetings.

City of Ithaca Planning and Economic Development Committee
Wednesday, March 17, 2021 at 6:00pm
Agenda will be available for download here.
Discussion of 01/28/21 IECS draft

Town of Ithaca Codes and Ordinance Committee
Wednesday, April 14, 2021 at 5:30pm
Agenda will be available for download here.
Continue discussion of IECS 01/28/21 draft