Construction noise, generated from different operations or activities on site, are quite offensive and are of great concern to the noise problem of Hong Kong.

Under the Noise Control Ordinance, various construction activities in Hong Kong are grouped into two categories:

1. General construction work
2. Percussive piling

They are controlled by means of a system of Construction Noise Permits (CNP) which are issued only under some prescribed conditions. Construction work that involves noisy operation is prohibited during the following restricted hours:

1. Between 7 p.m. and 7 a.m. for every working days
2. At any time on a Sunday or a Public holiday

Please click here to access more information on Construction Noise Management.

Examples of reducing noise disturbance are:

1. Using noise barriers, silencers, enclosures, etc.
   
   
   Noise barrier to minimize potential noise impact

1. Adopting quiet methods of piling, construction and demolition
   
   
   Reducing noise pollution by using low noise machinery

1. Conducting noise impact assessments regularly
   
   
   Noise measurement at noise sensitive receivers

1. Using quality powered machinery and equipment with registered labels.
   
   
   Use of quality powered mechanical equipment with registered label