These are some commonly undertaken activities or activities that might be regulated by more than one regional plan. You can link from the activity through to the actual rules that apply to it.
For example, if you want to know what sort of conditions you must comply with if you have a septic tank, look up "sewage disposal".
Abrasive Blasting (aka "sand blasting" and "water blasting")
Agrichemical application (pesticides and herbicides)
Marine dumping, including scuttling a boat
Moorings, including swing moorings