employee
(4) (A) The term “employee” does not include any individual who volunteers to perform services for a public agency which is a State, a political subdivision of a State, or an interstate governmental agency, if— (i) the individual receives no compensation or is paid expenses, reasonable benefits, or a nominal fee to perform the services for which the individual volunteered; and (ii) such services are not the same type of services which the individual is employed to perform for such public agency. (B) An employee of a public agency which is a State, political subdivision of a State, or an interstate governmental agency may volunteer to perform services for any other State, political subdivision, or interstate governmental agency, including a State, political subdivision or agency with which the employing State, political subdivision, or agency has a mutual aid agreement.