Availability Clauses
These are required under the last round of legislation if you want to be able to require someone to work at times only when you need them. They need compensation identified in your employment agreements.
The first court case has now been heard and the Courts have confirmed that having staff tell you generally when they are available to be rostered is different and does not need a compensation clause - as long as you cannot force them to work within those general hours.
Good news for any organisation that will roster staff differently from one week to the next.