Status as a student-employee is not terminated by a temporary detail to or affiliation with another Government or non-Government institution to procure necessary supplementary training or experience pursuant to an order of the head of the agency. A student-employee may receive his stipend and other perquisites provided under this subchapter from the hospital, clinic, or laboratory to which he is assigned or attached for not more than 60 days of a detail or affiliation for each training year, as defined by the head of the agency.

When the detail or affiliation under subsection (a) of this section is to or with another Federal institution, the student-employee is entitled to necessary expenses of travel to and from the institution in accordance with subchapter I of chapter 57 of this title.