Rule 12 of the Principal Rules is amended as follows:(a) by inserting the following paragraph after paragraph (a) :(ab) open or close any specified part of the scallop fishery to a method of fishing; and(b) by omitting from paragraph (b)(ii) "(class 2)." and substituting "(class 2); and" ;(c) by inserting the following paragraphs after paragraph (b) :(c) determine the minimum size of scallop that may be taken from part of a scallop fishery; and(d) determine the amount of scallop that may be taken from part of a scallop fishery.