Clause 5

by inserting, immediately after the definition of “Authority” in section 2(1), the following definition:“ “bench mark” means any survey control mark in Singapore that is used as vertical control to determine the vertical distance between the Singapore Height Datum and a survey point above or below;”;

by inserting, immediately after the definition of “repealed Act” in section 2(1), the following definition:“ “Singapore Height Datum” means the fixed datum surface set at 0.000 metres of Singapore’s historical mean sea level;”;

by deleting the words “or height of which is determined” in the definition of “survey control mark” in section 2(1) and substituting the words “or vertical distance from the Singapore Height Datum which is determined, and includes a bench mark”; and

by inserting, immediately after section 7, the following section:“Bench marks deemed conclusive evidence of height, etc.