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Classification and grading of pigs and carcases. 
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54.—(1) The Board may, whenever and so often as it thinks fit, by order do the following things, that is to say:— 
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(a) divide non-factory-purchased pigs into such and so many classes (defined in such manner as the Board thinks proper) as the Board thinks fit, and 
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(b) divide carcases of factory-purchased pigs into such and so many classes (defined in such manner as the Board thinks proper) as the Board thinks fit, and 
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(c) divide any such class or classes of carcases of factory-purchased pigs into such and so many grades (defined in such manner as the Board thinks proper) as the Board thinks fit. 
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(2) The Board may, wherever and so often as it thinks fit, by order divide carcases of non-factory-purchased pigs into such and so many classes (defined in such manner as the Board thinks proper) as the Board thinks fit. 
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(3) The Board may at any time by order under this sub-section revoke or amend any order made under this section (including this sub-section). 
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(4) In this part of this Act— 
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the word “class”— 
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(a) in relation to non-factory-purchased pigs, means a class into which such pigs are divided by an order, for the time being in force, made under sub-section (1) of this section, 
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(b) in relation to carcases of factory-purchased pigs, means a class into which such carcases are divided by an order, for the time being in force, made under sub-section (1) of this section, 
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(c) in relation to carcases of non-factory purchased pigs, means a class into which such carcases are divided by an order for the time being in force made under sub-section (2) of this section; 
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the word “grade”, in relation to any class of carcases of factory-purchased pigs, means a grade into which such class is divided by any order for the time being in force made under sub-section (1) of this section; 
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the expression “graded class”, in relation to carcases of factory-purchased pigs, means a class of such carcases which is divided into grades by an order for the time being in force made under sub-section (1) of this section; 
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the expression “non-graded class”, in relation to carcases of factory-purchased pigs, means a class of such carcases which is not divided into grades by an order for the time being in force made under sub-section (1) of this section. 
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