For the purposes of this Chapter, a curfew condition is a condition which—
The curfew condition may specify different places or different periods for different days, but may not specify periods which amount to less than 9 hours in any one day (excluding for this purpose the first and last days of the period for which the condition is in force).
The curfew condition is to remain in force until the date when the released person would (but for his release) fall to be released unconditionally under section 243A or on licence under section 244.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nothing in this section is to be taken to require the Secretary of State to ensure that arrangements are made for the electronic monitoring of released persons' whereabouts in any particular part of England and Wales.