Noise Abatement Ordinance
(NAO)

English is not an official language of the Swiss Confederation. This translation is provided for information purposes only and has no legal force.

of 15 December 1986 (Status as of 1 July 2021)


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Art. 37a Determination and control of noise exposure levels 34

1 The en­force­ment au­thor­it­ies state the per­mit­ted noise ex­pos­ure level in their de­cision on the con­struc­tion, al­ter­a­tion or im­prove­ment of an in­stall­a­tion.

2 If it is es­tab­lished or an­ti­cip­ated that the noise ex­pos­ure levels due to an in­stall­a­tion will de­vi­ate sig­ni­fic­antly and per­man­ently from those quoted in the de­cision, the en­force­ment au­thor­it­ies shall take the ne­ces­sary meas­ures.

3 The Fed­er­al Of­fice for the En­vir­on­ment may is­sue re­com­mend­a­tions on the stand­ard­ised re­cord­ing and present­a­tion of the noise ex­pos­ure levels in these de­cisions.

34 In­ser­ted by No I of the O of 12 April 2000 (AS 20001388). Amended by No I of the O of 1 Sept. 2004, in force since 1 Oct. 2004 (AS 2004 4167).

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