Chapter:	311R	Title:	AIR POLLUTION CONTROL (CONSTRUCTION DUST) REGULATION	Gazette Number:
Section:	7	Heading:	Defence of due diligence, etc.	Version Date:	30/06/1997

It is a defence to a charge against any person for an offence under section 4, 5 or 6 for the person charged to prove that-

(a) interruptions or contingencies in the supply of necessary materials, water and equipment;
(b) weather conditions prevailing at the time of the offence;
(c) a threat or an imminent threat to human life or building safety;
(d) the physical constraints of the construction site; or
(e) circumstances beyond his control other than those referred to in paragraphs (a), (b), (c) and (d), (L.N. 238 of 1997)