i think you have hit the nail on the head, all authorities have their version of AWN 47. one must not forget that it is the larger companies dictate to the authorities and the only way the rules will be changed it it starts to cost them money ie lawsuits. all will be fine until something happens and you will be hung out to dry, there is one guy i work with used to do on average 65 hours OT a month, you cannot be safe working these hours and until legislation is passed nothing will change