The Washington State Building Code Council has filed an emergency rule pertaining to energy storage systems regulated under WAC 51-54A-1201 and WAC 51-54A-8000 in WSR 23-11-148. This emergency rule is in effect from May 24, 2023, through June 30, 2023, and will be rescinded as of July 1, 2023. A new emergency rule is expected to go into effect July 1, 2023.