Building Energy Standards Update

Vermont Building Energy Code Public Stakeholder Meetings

The Public Service Department has begun the next update to the building energy codes (Residential Building Energy Standards, or RBES, and Commercial Building Energy Standards, or CBES) with the target effective date of fall or winter of 2023. The code update process included multiple opportunities to provide input and feedback.

The Vermont Building Energy Code Public Stakeholder Meetings were part of that process. The public stakeholder meetings served to gather input and feedback from a range of stakeholders in the process of updating the codes.

There were two RBES public stakeholder meetings and two CBES public stakeholder meetings. The first set of meetings presented the proposed changes and gather input from the public for the development of the draft 2023 RBES and CBES. The second set of meetings presented a draft final version of proposed measures that would make up the 2023 RBES and CBES codes and solicit feedback. These meetings took place in April and late May and were held remotely. 

As of 9/23 the Department has begun the official process to update and adopt the Building Energy Standards in Vermont. The proposed rules for both CBES and RBES have been submitted to the Interagency Committee on Administrative Rules which begins the process. This process includes a public meeting and a comment period. That information shall be posted on this webpage as well as e-mailed to those who have previously indicated interest in receiving notifications from the previous process employed to develop the proposed update to the code.

If you have any specific comments on the energy code, please submit them through this webform (click here) or e-mail psd.codeupdateres@vermont.gov.

Administrative Rule Documents

Proposed Residential Building Energy Standards Rule Document submitted 9/23

Proposed Commercial Building Energy Standard Rule Document submitted 9/23

Code Redlines

RBES 2023 Full-Text Redline incorporating Proposed Amendments as of 9/23/2022

Major Changes from the 2020 RBES

RBES 2023 rough draft redline Language 6-9-2022

CBES 2023 Full-Text Redline incorporating Proposed Amendments as of 9/23/2022

Major Changes from the 2020 CBES

CBES 2023 rough draft redline Language 6-8-2022

 

Meeting Materials

CBES Public Stakeholder Meeting Slides 5-26-2022

RBES Public Stakeholder Meeting Slides 5-24-2022

CBES Public Stakeholder Meeting Slides 4-8-2022

RBES Public Stakeholder Meeting Slides 4-6-2022

CBES Advisory Committee Meeting Slides 3-30-2022

RBES Advisory Committee Meeting Slides 3-29-2022

Background

The most current versions of the Residential (RBES) and Commercial (CBES) Building Energy Standards became effective September 1, 2020. The current Residential Standards were based on the International Energy Conservation Code (IECC), 2015 with additional language from the International Energy Conservation Code (IECC), 2018 and International Energy Conservation Code (IECC), 2021. The Commercial Standards were based on the International Energy Conservation Code (IECC), 2018 with additional language from the International Energy Conservation Code (IECC), 2021. Vermont statutes require that revisions be made promptly after the issuance of updated standards. In 2013, the Vermont legislature in Act 89 required the adoption of a stretch code for residential buildings to achieve greater energy savings than the baseline RBES. Municipalities have the option to adopt and include the stretch language for either residential or commercial buildings, or both, in the municipality’s land-use bylaws.Adopted Rule Documents 

Updated 2020 Residential Building Energy Standards (RBES) 

Updated 2020 Commercial Building Energy Standard (CBES) 

 

2020 RBES Training Videos

 

Part 1 - Background Information

Part 2 - Code Updates

2020 CBES Training Videos

C402 - Building Envelope

C403 - Mechanical

C404 - Service Hot Water

C405 & C406 - Electrical & Lighting & Additional Package Options

C407 - Building Commissioning

C501 - Existing Buildings

 

Useful Links