Noise Abatement Ordinance
(NAO)

¹ The amount of the sub­sidy for im­prove­ments is de­term­ined by:

a.

the num­ber of people who are pro­tec­ted by these meas­ures; and

b.

the re­duc­tion in noise pol­lu­tion.

² For sound­proof­ing meas­ures on ex­ist­ing build­ings, CHF 400 is al­loc­ated per sound­proof win­dow or oth­er equally ef­fect­ive struc­tur­al noise pro­tec­tion meas­ure.

³ The amount of the sub­sidy is ne­go­ti­ated between the Con­fed­er­a­tion and the can­ton.