Table 4‑9 Action and Limit Levels for Noise

Time Period

Action Level

Limit Level

0700-1900 hrs on normal weekdays

When one documented complaint is received

75 dB(A)

70 dB(A) / 65 dB(A)*


If works to be carried out during restricted hours, the conditions stipulated in the Construction Noise Permit (CNP) issued by the Noise Control Authority have to be followed.

* 70dB(A) and 65dB(A) for schools during normal teaching periods and school examination periods, respectively.