Think this one's going. I'd say there's a possibility it will be linked to point 2. Authorities which don't already run McCrone this way are looking at how to implement this without using supply / visiting staff, for example through a 4.5 day week for kids, or by manipulating lunch hours / breaks / start & finish times. As a result, the "time and place" then becomes irrelevant for the latter, and politically inconvenient for the former (newspapers would report this as 'teachers taking half day off' - not something councillors want to see in the run up to elections.) This is effectively cutting out a promotion path for teachers - and unless authorities are going to move en bloc from the Faculty model it will effectively kill off promotion prospects for most teachers. There are some benefits in outlining what you are not required to do - at a completely different level, this is how the Scottish Parliament works as the areas it doesn't cover are the areas enshrined in law. By virtue of that, anything not included in the areas of "non-duties" must therefore be considered in areas of "duties"? I guess that everyone's reading this as eating into holidays, but the way it's worded it could equally include additional in-service days, taking teaching time away.