As used in 875-Chapters 216 to 220:
However, an employee of a public agency which is the state, political subdivision of the 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.
Iowa Admin. Code r. 875-215.3
29 U.S.C. 203.