Note 1 to entry: A spontaneous volunteer can also be referred to as a convergent volunteer, a walk-in volunteer, an occasional volunteer, an episodic volunteer, or a non-affiliated volunteer.

Note 1 to entry: The concept of organization includes, but is not limited to, sole trader, company, corporation, firm, enterprise, authority, partnership, charity or institution, or part or combination thereof, whether incorporated or not, public or private.