On the point about going beyond their budget, so long as they are spending within their budget and within the votes that have been appropriated to them, and have made a decision that within those votes they will spend on this project versus another project, it's within the authority of the departments to do it.
They cannot blow their vote, but they can allocate within their operating.... Within the funding they get for O and M, they're making decisions all the time on allocation of that funding amongst different programs in order to carry out their mandate. It is within the authority of the department to do so.