About BPI Standards

BPI is a national standards development organization for residential energy efficiency and weatherization retrofit work. As an independent, not-for-profit organization, we bring together leading building science experts from across North America to develop our standards using a consensus-based process.

On July 13, 2010, BPI was approved by the American National Standards Institute (ANSI) as an Accredited Standards Developer. Through BPI's Standards Technical Committees (STCs), their working groups, and dozens of committed industry participants, the BPI standards program maintains an unmatched reputation as the home performance industry’s leading standards body.

BPI functions as a vital connection between contractors, technicians, training organizations, and programs to ensure the entire home performance and weatherization workforce is following the same strict protocols.

Individuals that have been trained, tested, and certified to BPI’s nationally recognized standards use the house-as-a-system approach to improve the performance of existing homes – an approach proven to reduce homeowner annual utility bills by as much as 20% or more. That's why BPI standards are cited by the Home Performance with ENERGY STAR (HPwES) program from the U.S. Department of Energy (DOE) and Environmental Protection Agency (EPA), as well as several state Weatherization Assistance Programs (WAPs).

Standards Under Review

BPI’s Data and Modeling Standards Technical Committee (DM-STC) has approved the release of Annex E of the following standard for a 30-day public comment period ending on January 26, 2024. Please note that only informative Annex E | Alternative Asset-Based Savings Calculation with Insufficient Energy Use Data is open for comment. To download and review this standard, click on the title below.

BPI-2400-S-2015 (The Delta Standard) v.2

To submit comments on Annex E, please download the BPI Standards Comment Form. Completed forms must be submitted to standards@bpi.org by January 26, 2024 in order for comments to be considered by the DM-STC.


BPI Standards Development Procedures

BPI-1 Standards Procedures Manual 


Appeals Policy

BPI Standards Development Appeals Policy and Filing Fee 


Policy Guidelines

Through its committees, working groups, Board of Directors, and departmental staff, BPI's activities are governed by strict policies designed to promote and stimulate our free enterprise system. Download the BPI General Policy Statement Applicable to Standardization Programs  to learn more.

Patent Policy Form

The Patent Holder Statement  should be used to submit Intellectual Property (IP) tenders on BPI standards and bulletins. BPI conforms to the ANSI patent policy as set forth in the current version of ANSI Essential Requirements.

New Standard Proposal

To propose a new standard that fits within BPI’s scope as an ANSI American Standard Developer, please submit the New Standard Proposal Form .

Please see the FAQs or e-mail standards@bpi.org for further questions.

Get Involved

Getting involved in the BPI standards program offers companies, contractors, training organizations, and individuals an opportunity to influence the entire standards setting process and become an early player in market-shaping decisions.

Spanning the broadest collection of interests in the field, the BPI Standards program is comprised of dozens of active industry-wide stakeholders.

Standard Technical Committees

Each year, BPI solicits new members for its Standards Technical Commitees (STCs). You may apply by providing information about yourself, your company, and which standards groups you are interested in. Just complete the STC Membership Application  and submit it to standards@bpi.org. A representative from BPI's Standards department will review your information and contact you regarding your best opportunities.

STC Working Groups

If you are interested in participating in the STC working groups, please complete the Subject Matter Experts Information Form  and submit it to standards@bpi.org using the instructions provided on the form.

Feedback on Proposed ANSI/BPI Standards

BPI encourages all interested stakeholders to provide technical and editorial comments on proposed standards during the announced formal public comment periods. This critical part of the open development process ensures that a consensus of those directly affected by the standards has been achieved.