Overtime is potentially payable when:
· you remain on duty after your tour of duty ends,
· you are required to begin earlier than the rostered time without due notice and on a day when you have already completed your normal daily period of duty.
The premium rate for casual overtime is at a time and one third.
When you are informed at or before the commencement of your tour that you will be required to remain on duty after the tour ends no account is to be taken of any period of less than 30 minutes of overtime worked on any occasion other than a period of 15 minutes.
Where you are not informed at the commencement of your tour of duty that you will be required to remain on duty after the tour of duty ends then, on the first four occasions, in any week, the first 30 minutes of any overtime worked is to be disregarded.