Clause 15

If any oil or mixture containing oil is discharged into Singapore waters from any place on land, the occupier of that place shall, subject to the provisions of subsection (2) of this section, be liable to pay for the costs incurred by the appointed authority in removing or eliminating the oil or mixture containing oil.

The occupier of a place shall be exempted from the liability to pay for the costs incurred by the appointed authority in removing or eliminating the oil or mixture containing oil if he proves that the discharge of the oil or mixture containing oil was caused by the act of a person who was in that place without the permission (express or implied) of the occupier.