Singapore legislation
Regulation 77F
of Civil Aviation Authority of Singapore (Changi Airport) By-laws 2009
Regulation 77F
Removal of underground installation of decommissioned underground service
Subregulation 1
Paragraph (2) applies when an earthworks permit holder carrying out any earthworks within the airport discovers any underground installation that is not shown in the underground service plan.
Subregulation 2
The earthworks permit holder must inform the airport licensee of that discovery —
as soon as reasonably practicable; and
no later than 24 hours after that discovery.
Subregulation 3
If the underground service relating to the underground installation discovered has been decommissioned, the airport licensee may direct the earthworks permit holder to remove any underground installation of the decommissioned underground service that is exposed when carrying out the earthworks.
Subregulation 4
An earthworks permit holder must comply with any direction given by the airport licensee under paragraph (3).