ASHRAE 188-2018 Addendum b

Addendum b to Standard 188-2018 — Legionellosis: Risk Management for Building Water Systems (ANSI Approved)
Amendment by ASHRAE, 2020

ASHRAE IC 170-2017-3

Interpretation IC 170-2017-3 to Standard 170-2017 — Ventilation of Health Care Facilities (ANSI/ASHRAE/ASHE Approved)
Amendment by ASHRAE, 2019