English is not an official language of the Swiss Confederation. This translation is provided for information purposes only and has no legal force.
Art. 18 Average sound level
The average sound level LAeq1h is defined as the A-weighted and equivalent long-term sound level LAeq measured over 60 minutes in dB(A).
Art. 19 Sound level limit values for events
1 At events involving electroacoustically amplified sound: a. the average sound level must not exceed 100 dB(A); b. the maximum sound level must not exceed 125 dB(A) at any time. 2 At events for children or adolescents under 16, the average sound level must not exceed 93 dB(A).
Art. 20 Obligations of the event organiser
1 Any person who carries out events involving electroacoustically amplified sound must: a. in the case of an average sound level greater than 93 dB(A), notify this in writing to the cantonal enforcement authority at least 14 days beforehand with the information specified in Annex 4 Number 1; b. in the case of an average sound level greater than 93 dB(A) and less than or equal to 96 dB(A), comply with the requirements specified in Annex 4 Number 2; c. in the case of an average sound level greater than 96 dB(A) and less than or equal to 100 dB(A): 1. with a sound exposure time for no longer than three hours, comply with the requirements specified in Annex 4 Number 3.1, 2. with a sound exposure time for more than three hours, comply with the requirements specified in Annex 4 Number 3.2. 2 At an event involving electroacoustically amplified sound whose average sound level overall is greater than 93 dB(A), and which comprises a number of component events at the same location, the component
Art. 21 Determination of the sound levels and control measurements
1 Measurements and calculations to determine the sound level shall comply with Annex 4 Number 5. 2 The cantonal enforcement body may terminate a sound measurement as soon as it can demonstrate by calculation that the limit for the notified average sound level is exceeded.