For subsection (2) of section 71B of each of the 1955 Acts and for subsection (2) of section 43B of the 1957 Act (maximum periods of imprisonment or detention for default in payment of fines) there shall be substituted the following subsection—

“(2)

Subject to subsections (4) and (5) below, the Table in section 31(3A) of the M1Powers of Criminal Courts Act 1973 (maximum periods of imprisonment for default in payment of fines etc.), as from time to time amended under section 143 of the M2Magistrates' Courts Act 1980, shall have effect for the purpose of determining the maximum periods of further imprisonment or detention that may be specified under subsection (1) above for fines of the amounts set out in that Table.”