Noise Abatement Ordinance
(NAO)

¹ The en­force­ment au­thor­it­ies shall re­lax the re­quire­ments in cases where:

a.

im­prove­ments would res­ult in un­reas­on­able op­er­a­tion­al lim­it­a­tions or costs;

b.

over­rid­ing in­terests, namely those of the pre­ser­va­tion of loc­al char­ac­ter, nature and land­scape pro­tec­tion, traffic and op­er­a­tion­al safety, or na­tion­al se­cur­ity, con­flict with the im­prove­ment ob­ject­ive.

² Un­li­censed private in­stall­a­tions must not, however, ex­ceed the alarm val­ues.