This ole chestnut again…
The activity schedule must mirror the programme and certainly the latest accepted programme; my question is, should it be necessary to update the AS each time a new programme is submitted (usually this is on a monthly basis), or, does it only have to be updated once a programme is accepted? The point being that in the event the programme is not accepted you have an updated activity schedule which does not necessarily reflect the content of the works to be done (or the works to be done as accepted by the PM).