Sewerage and Drainage Act
(Chapter 294, Sections 51 and 74)
Sewerage and Drainage (Sanitary Works) Regulations
Rg 2
G.N. No. S 167/1999

(15th May 2007)
[1st April 1999]
1.  These Regulations may be cited as the Sewerage and Drainage (Sanitary Works) Regulations.
2.  In these Regulations, unless the context otherwise requires —
“Code of Practice” means the Code of Practice on Sewerage and Sanitary Works issued under section 32 of the Act;
“common property” has the same meaning as in the Land Titles (Strata) Act (Cap. 158);
“discharge pipe” means a pipe which conveys the discharges from a sanitary appliance or a floor trap;
“discharge stack” means a main vertical discharge pipe;
“sanitary drainage system” means a network of underground pipes comprising drain-lines, branch drain-lines, fittings and inspection chambers for the conveyance of sewage within any premises to a sewerage system;
“sanitary plumbing system” means a system of sanitary pipework above the ground comprising one or more discharge pipes, discharge stacks, ventilating pipes, ventilating stacks and fittings for the conveyance of sewage from any premises to a sanitary drainage system;
“sanitary works” include works on any sanitary plumbing system or sanitary drainage system and the fixing, alteration and repair of a sanitary appliance, and other works connected therewith;
“ventilating pipe” means a pipe provided to limit the pressure fluctuations within any sanitary plumbing system;
“ventilating stack” means a main vertical ventilating pipe.