How much should go toward clean-running school buses? How much toward trucks? Or transit? And in what parts of the state? And what about peeling off a portion for electric vehicles and associated infrastructure?

These are some of the questions Oregon will wrestle with in the next few months as it decides how to spend $72.9 million due from Volkswagen.

The state doesn’t have free rein in spending the money, part of a nearly $3 billion settlement to remediate the extra nitrogen oxide emissions…