Noise Abatement Ordinance
(NAO)

¹ The can­tons shall en­sure that sens­it­iv­ity levels are as­signed to the land use zones in the build­ing reg­u­la­tions or land use plans of the com­munes.

² The sens­it­iv­ity levels are as­signed at the time of des­ig­na­tion or modi­fic­a­tion of the land use zones, or at the time of modi­fic­a­tion of the build­ing reg­u­la­tions.⁴²

³ Pri­or to as­sign­ment, the can­tons shall de­term­ine the sens­it­iv­ity levels on a case by case basis in ac­cord­ance with Art­icle 43.

⁴ …⁴³