We do provide advice and outreach to departments quite regularly through Tracey's team. They are the ones who develop the policy, ensure compliance with it and create awareness of the rules and the requirements within the policy. Reminders do go out regularly.
To your earlier point, communications divisions along with other parts of a department do have to be ready for something. There should be appropriate communications around the tabling of a bill. It needs to be worded appropriately to acknowledge its status, but that is part of regular communications work.