Singapore legislation
Regulation 4
of Sewerage and Drainage (Protection of Public Sewerage System) Regulations 2017
Regulation 4
Obligations relating to specified activity
Subregulation 1
A contractor who is engaged in or is to carry out any specified activity within a part of a public sewer corridor must ensure that the activity is carried out in accordance with an approved plan (including any amendment permitted to the plan) for the activity.
Subregulation 2
Any person who contravenes paragraph (1) shall be guilty of an offence.