When using the optional ASHRAE 90.1-2019 code compliance method, see amendment in Statewide Alternate Method (SAM) 21-02, effective October 1, 2021 (opens as PDF):
Serving Washington, Oregon and Idaho
Serving Washington, Oregon and Idaho
When using the optional ASHRAE 90.1-2019 code compliance method, see amendment in Statewide Alternate Method (SAM) 21-02, effective October 1, 2021 (opens as PDF):