US lawArizonaRegulationsTitle 7 — EducationChapter 6 — School Facilities BoardR7-6-214R7-6-214R7-6-214. Classroom AcousticsLast amended: 2020Length: 18 wordsOfficial source Cite as Ariz. Admin. Code § R7-6-214The sustained background sound level of each general, science, and art classroom shall be less than 55 decibels.PreviousR7-6-213NextR7-6-215