Volunteers operate local HOGs, and some chapters have been known to elect a group of officers for the purposes of local governance, but such officers are not necessary. Dues may or may not be collected depending on whether the local chapter wants to raise money to fund some of their events.
HOGs are well known around the world for their extensive charity work. But once again, the company does not require chapters to engage in any particular charitable event. They do not even have to contribute to the corporation's main charitable beneficiaries. Local chapters are encouraged to engage in charity work but are free to support the charities of their choosing.
As you can see, the larger HOG organisation is very liberal in terms of how it allows local chapters to operate. Those local chapters really are the backbone of HOG.