"Day Parole" means the authority granted to an offender by the board or a provincial parole board to be at large during the offender's term of imprisonment in order to prepare the offender for a full parole or statutory release, the conditions of which require the offender to return to a penitentiary, a community-based residential facility or a provincial correctional facility each night, unless otherwise authorized in writing.

This definition is more precise:

    * it has a purpose: "in order to prepare the offender for full parole or statutory release;
    * it defines the leeway for mobility: "to return to a penitentiary, a community-based residential facility or a provincial correctional facility each night, unless otherwise authorised in writing;"
    * it limits eligibility to six months before full parole eligibility date; and
    * it removes the automatic review provision -- the evaluation had shown that the requirements in Bill C-67 could not be met in both spirit and letter.

http://www.csc-scc.gc.ca/text/pblct/forum/e102/e102b-eng.shtml