A graffiti removal order made against a child remains in effect until—
(a) the child has performed graffiti removal service in accordance with the requirements specified under section 194B (1) (b) and (c) for the number of hours specified in the order; or
(b) the order is discharged under section 245 or 247 ; or
(c) the expiry of the period within which the graffiti removal service is required to be performed under section 194D ;whichever first happens.