How can governments best communicate public policy?

'Government' is probably to broad of a term. If we split government into those who create law, policy, and those who implement law, policy, we can approach a better answer. Legislature communicate policy mainly through the political process: campaigning, hearings, etc. Departments can better communicate policy, or programs implemented based on policy by direct discussion with constituencies Departments will generally have stronger communication with industry than citizens, but both should be at minimum informed of the departments interpretation of policy. If not even allowed in the process of developing programs