Multiple definitions are used, with the issue of payment for services being the factor that is important to differentiate: (1) A person agreeing to provide service outside the scope of his/her employer and/or employed position, without additional or specific compensation for this voluntary commitment. This differentiates the volunteer from personnel who provide service as part of their job position in an assigned resource. An individual offering or providing this service is a volunteer even if the volunteer's time is compensated through his/her usual employer and employment rate. (2) In some contexts such as ESAR-VHP, a volunteer is defined as providing service without pay or remuneration. (3) For purposes of the NIMS, a volunteer is any individual accepted to perform services by the lead agency, which has authority to accept volunteer services, when the individual performs services without promise, expectation, or receipt of compensation for services performed. (National Incident Management System NIMS)