Ordinance
to the Federal Act on Protection against the Risks
associated with Non-Ionising Radiation and with Sound
(O-NIRSA)

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 event with the highest av­er­age sound level de­term­ines wheth­er the ob­lig­a­tions spe­cified in para­graph 1 let­ter b must be met for the whole peri­od of the event or wheth­er these ob­lig­a­tions are gov­erned by para­graph 1 let­ter c.

³ Any per­son who car­ries out events in­volving sound that is not elec­troacous­tic­ally amp­li­fied with an av­er­age sound level great­er than 93 dB(A) must, both in build­ings and at fixed out­door loc­a­tions, com­ply with the re­quire­ments spe­cified in An­nex 4 Num­ber 4.