ASHRAE 34-2019 Addendum i

Addendum i to Standard 34-2019 — Designation and Classification of Refrigerants (ANSI Approved)
Amendment by ASHRAE, 2020

ASHRAE Guideline 12-2020 Addendum a

Addendum a to Guideline 12-2020 — Managing the Risk of Legionellosis Associated with Building Water Systems
Amendment by ASHRAE, 2020

ASHRAE 90.1-2019 (SI) Errata (November 13, 2020)

Errata to Standard 90.1-2019 (SI Edition) — Energy Standard for Buildings Except Low-Rise Residential Buildings (ANSI Approved; IES Co-sponsored)
Amendment by ASHRAE, 2020