Noise Abatement Ordinance
(NAO)

¹ The per­son re­spons­ible for the new or sig­ni­fic­antly mod­i­fied in­stall­a­tion bears the costs of lim­it­ing the emis­sion it causes.

² If the build­ing own­er is re­quired to take sound­proof­ing meas­ures ac­cord­ing to Art­icle 10 para­graph 1, the per­son re­spons­ible for the in­stall­a­tion also bears the cus­tom­ary loc­al costs proven to be due for:

a.

en­gin­eer­ing and su­per­vi­sion of works;

b.

sound­proof­ing of the win­dows in ac­cord­ance with An­nex 1 and the res­ult­ing ne­ces­sary ad­apt­a­tions;

c.

the fin­an­cing if the per­son re­spons­ible has failed to con­trib­ute des­pite be­ing re­ques­ted to do so by the build­ing own­er;

d.

any fees due.

³ If the build­ing own­er is re­quired to take sound­proof­ing meas­ures ac­cord­ing to Art­icle 10 para­graph 2, the per­son re­spons­ible for the in­stall­a­tion bears the cus­tom­ary loc­al costs proven to be due in­so­far as these do not ex­ceed those un­der para­graph 2. The build­ing own­er bears the re­main­ing costs.

⁴ Where the need for emis­sion lim­it­a­tion meas­ures or sound­proof­ing meas­ures arises as a res­ult of noise from sev­er­al in­stall­a­tions, the costs are di­vided among the in­stall­a­tions in pro­por­tion to their con­tri­bu­tion to the noise ex­pos­ure level.

⁵ The build­ing own­er bears the costs for main­ten­ance and re­new­al of the sound­proof­ing meas­ures.