Singapore legislation
Regulation 50
of Maritime and Port Authority of Singapore (Pleasure Craft) Regulations
Regulation 50
Pleasure craft towing water skis to have observer
No person shall operate a pleasure craft within the port for towing a person or persons on water skis unless in addition to the operator there is in the pleasure craft another person of at least 15 years of age who is in a position to observe the progress of the person or persons being towed.