"commence"

when used in Chapter 5, means the start of any physical implementation in furtherance of a listed activity or specified activity, including site preparation and any other action on the site or the physical implementation of a plan, policy, programme or process, but does not include any action required for the purposes of an investigation or feasibility study as long as such investigation or feasibility study does not constitute a listed activity or specified activity;

[Definition amended by section 1(b) of Act No. 30 of 2013]