Mortgage Industry National Home Energy Rating Systems Standards – Continuous Maintenance Version
  • 25 Jan 2024

Mortgage Industry National Home Energy Rating Systems Standards – Continuous Maintenance Version

Article Summary

This document incorporates all MINHERS Standards amendments adopted as of January 1, 2024. The first page of each Chapter denotes whether there are addenda to the Standards with delayed implementation dates that revise requirements in the Chapter. Note also that amendments to Standards ANSI/RESNET/ICC 301 and ANSI/RESNET/ICC 380 are effective when approved by ANSI and may have a Transition Period before compliance becomes mandatory. See Chapter 3 Section 304 Normative References for editions of the Standards and their Addenda.

The Standards adopted January 1, 2013 and approved addenda are posted at

Published by:

Residential Energy Services Network, Inc.
P.O. Box 4561
Oceanside, CA

Submitting Proposed Amendments to the RESNET Standards

RESNET welcomes proposed amendments to the Mortgage Industry National Home Energy Rating Standards. The proposed amendment must be submitted online. To submit a proposed amendment, fill out the RESNET Online Standard Amendment Form.

After RESNET receives a proposed amendment it is reviewed by the Standards Management Board to determine when it will be addressed. Proposed amendments will be forwarded to the appropriate Standards Development Committee. The committee will review the proposal and either request additional information, reject the proposal and inform the proponent the reason for rejecting or submit it to the RESNET standard amendment development process including public review and comment.

In order to be considered the proposal must be in editorial add/underline/strike delete format with specific sections listed. Click here for an example of an accepted proposed amendment.

HERS Update to Standard ANSI/RESNET/ICC 301-2019

MINHERS Addendum 42 adopted Standard ANSI/RESNET/ICC 301-2019 to replace Standard ANSI/RESNET/ICC 301-2014 as the basis for calculation of the HERS rating. Addendum 42 currently allows voluntary use of RESNET accredited software based on Standard 301-2019 and has established a “Mandatory Compliance Date” of January 1, 2022. See Section 502.3.2 for the definition “Mandatory Compliance Date” and how it applies to your Rating. Furthermore, for any Rating using Standard 301-2019, the RESNET Guidelines for Multifamily Energy Ratings may no longer be used.