The sustained background sound level of each general, science, and art classroom shall be less than 55 decibels.

Historical Note

New Section made by exempt rulemaking at 8 A.A.R. 287, effective June 7, 2001 (Supp. 01-4). Amended by final expedited rulemaking at 26 A.A.R. 2963, with an immediate effective date of November 3, 2020 (Supp. 20-4).