Noise Abatement Ordinance (NAO) (NAO)
English is not an official language of the Swiss Confederation. This translation is provided for information purposes only and has no legal force.
Section 1 Enforcement
Art. 45 Responsibilities of the Confederation and the cantons
1 The cantons shall enforce this Ordinance unless it delegates enforcement to the Confederation. 2 If the federal authorities apply other federal laws or international treaties or decisions that relate to the subject matter of this Ordinance, they shall also enforce this Ordinance. The cooperation of the FOEN and the cantons is governed by Article 41 paragraphs 2 and 4 of the Act; statutory duties of secrecy are reserved. 3 The following authorities are responsible for enforcing the provisions governing emission limitation measures (Art. 4, 7–9 and 12), improvements (Art. 13, 14, 16–18 and 20) and the determination and control of noise exposure levels (Art. 36, 37, 37a and 40): for railway installations: DETEC, where the provisions relate to major railway projects under the Annex to the Railways Act of 20 December 1957 and are implemented by means of a planning approval procedure, in other cases, the Federal Office of Transport; for civil aerodromes: DETEC, where the provisions relate
Art. 45 — Amended by No II 14 of the O of 2 Feb. 2000 to the Federal Act on the Coordination and Simplification of Decision-making Procedures, in force since 1 March 2000 (AS 2000 703). Art. 45 — Inserted by Annex 2 No 9 of the O of 21 May 2008 on Geoinformation, in force since 1 July 2008 (AS 2008 2809). Para. 3 — SR 742.101 Para. 3 — SR 748.0 Para. 3 — SR 734.0 Para. 3 — SR 743.01 Para. 3 — Amended by No I of the O of 30 June 2010, in force since 1 Aug. 2010 (AS 2010 3223). Para. 5 — Inserted
Art. 45a National noise pollution survey
The FOEN shall conduct a national survey of noise pollution. It shall publish a geo-referenced presentation of the noise pollution in particular for road, railway and aircraft noise and for noise from military firing ranges and training grounds. It shall updates this presentation at least every five years.
Art. 45a — Inserted by No I of the O of 30 June 2010, in force since 1 Aug. 2010 (AS 2010 3223).
Art. 46 Geoinformation
The FOEN shall provide specifications for the minimal geodata models and presentation models for official geodata under this Ordinance, for which it is designated as the federal specialist authority in Annex 1 to the Geoinformation Ordinance of 21 May 2008.
Art. 46 — Amended by Annex 2 No 9 of the O of 21 May 2008 on Geoinformation, in force since 1 July 2008 (AS 2008 2809). SR 510.620
Section 2 Transitional Provisions
Art. 47 Stationary installations and buildings
1 Stationary installations are deemed to be new stationary installations if the decision authorising the start of building work has not yet taken full legal effect when this Ordinance comes into force. 2 For stationary installations that are to be modified, Articles 8-12 apply only if the decision authorising the modification has not yet taken full legal effect when this Ordinance comes into force. 3 Buildings are deemed to be new buildings if planning permission has not yet taken full legal effect when this Ordinance comes into force. 4 For buildings that must be modified, Articles 31 and 32 paragraph 3 apply only if planning permission has not yet taken full legal effect when this Ordinance comes into force.
Art. 47 — Amended by No I of the O of 23 Aug. 2006, in force since 1 Nov. 2006 (AS 2006 3693).
Art. 48
Repealed by No I of the O of 30 June 2010, with effect from 1 Aug. 2010 (AS 2010 3223).
Art. 48a
Inserted by No I of the O of 1 Sept. 2004 (AS 2004 4167). Repealed by No I of the O of 21 Feb. 2018, with effect from 1 April 2018 (AS 2018 965).
Art. 49
Repealed by No IV 31 of the O of 22 August 2007 on the Formal Revision of Federal Legislation, with effect from 1 Jan. 2008 (AS 2007 4477).
Section 3 Commencement
Art. 50
This Ordinance comes into force on 1 April 1987.

