Essentially, BAH charges the US Federal Gov agencies nothing, with the assurance that the creation and upkeep of these portals will be funded by various fees that can be added at BAH discretion, so long as they hold a pro forma public feedback discussion.
https://news.ycombinator.com/item?id=33789501
See also the explanation for the fees:
https://news.ycombinator.com/item?id=33794493
Essentially, BAH charges the US Federal Gov agencies nothing, with the assurance that the creation and upkeep of these portals will be funded by various fees that can be added at BAH discretion, so long as they hold a pro forma public feedback discussion.