104. The Government may, by regulation, generally prescribe any measure that is necessary or expedient for the purposes of this Act.
The regulations made under this section and those made under other provisions of this Act may, if they so provide, apply to a period prior to their publication, but not prior to the taxation year 1972.
1972, c. 24, s. 155; 1974, c. 18, s. 56; 1998, c. 16, s. 260.