ASHRAE guidelines and standards open for comment

The below draft is open for a 45-day public review

• BSR/ASHRAE/IES Addendum g to ANSI/ASHRAE/IES Standard 100-2024 (first public review). Public review closes April 20. 

  This addendum primarily focuses on resolving some internal consistency issues and scope gaps created in the process of adding Greenhouse Gas Intensity (GHGI) targets to the standard for the 2024 publication. The addendum also includes a few editorial changes to improve the usability of the Standard.

The below draft are open for 30-day public reviews

• BSR/ASHRAE/ICC/USGBC/IES Addendum ac to ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2023, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings (first public review). Public review closes April 12. 

  This proposal for hydraulic elevators would require variable speed drives to control the speed of the hydraulic motor and prohibits the use of oil bypass for speed control when lifting the elevator. This replaces the base case system which uses a single speed motor and bypass valve to control the flow of hydraulic oil into the hydraulic jack to control the speed and location of the elevator. 

• BSR/ASHRAE/ICC/USGBC/IES Addendum ah to ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2023, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings (first public review). Public review closes April 19. 

  This addendum amends Section 9.5 with the removal of the Reduced Impact Materials section and the introduction of two new compliance pathways: Lower Global Warming Potential (GWP) Product Procurement and Existing Building Reuse. The existing Life-Cycle Assessment (LCA) remains unchanged. Projects must choose to comply with one of these three options.

• BSR/ASHRAE/ICC/USGBC/IES Addendum p to ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2023, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings (second public review). Public review closes April 19. 

  This second public review independent substantive change makes changes to the addendum that resulted from public review comments on the first publication public review. The addendum updates requirements for water system sub-metering and data storage and retrieval. This second PPR ISC modifies some of the thresholds that trigger monitoring requirements, removes monitoring requirements for adiabatic condenser blowdown, and adds a requirement for monitoring the supply to multiple small units which cumulatively exceed the applicable threshold. An Informative Note is added to provide examples of “unusual flow conditions.”

• BSR/ASHRAE/ICC/USGBC/IES Addendum k to ANSI/ASHRAE/ICC/USGBC/IES Standard 189.1-2023, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings (second public review of independent substantive changes). Public review closes May 3.

  This Addendum modifies portions of section 10 dealing with outdoor air monitoring in the maintenance plan. It simplifies the requirements and eliminates duplication by relying on requirements in Standard 62.1. This second public review is in response to a commenter who brought to the Project Committee’s attention that the 2025 version of Standard 62.1 has a revised Section Note that the deletion of 10.9.8 referencing Standard 180 is not a substantive change since it duplicates the requirement in 62.1-2025 Section 8.2 that is already referenced.

Visit the ASHRAE portal to make comments on the above addenda.