Regulation 4 of the Principal Regulations is amended as follows:

(a) by omitting from paragraph (ab)(v) "easement;" and substituting "easement; and" ;

(b) by inserting the following subparagraphs after subparagraph (v) in paragraph (ab) :

(vi) appurtenant to a Class 1 building; and

(vii) not covered by a roof, pergola, trellis, garden arch or frame;

(c) by omitting paragraph (s) and substituting the following paragraphs:

(s) crop protection structures for use in agricultural or horticultural production –

(i) which are covered by netting, shade cloth or similar open-weave material; or

(ii) which consist of a proprietary system of tunnel frames covered with flexible non-permeable material, provided that water runoff is not likely to cause a nuisance;

(t) a wharf, jetty, marina or pontoon that –

(i) is permanently attached to land; and

(ii) does not have a building on it.