Section 87 of the Principal Act is amended as follows:

(a) by omitting from subsection (1) "grant special remission to a prisoner in addition to the prisoner's entitlement to ordinary remissions" and substituting ", subject to any regulations for the purposes of this section, grant to a prisoner, in relation to the sentence, or sentences, of imprisonment in relation to which the prisoner is in custody or that form part of a continuous period in which the prisoner has been in custody, one or more special management days" ;

(b) by inserting the following subsection after subsection (1) :

(1A)  A prisoner who is granted under subsection (1) one or more special management days, in relation to one or more sentences of imprisonment in relation to which the prisoner is or has been in custody, is entitled to have the total period in which the prisoner is required to be in custody under those sentences remitted by that number of days.