45 CFR § 2556.315
What are terms and conditions for official travel for a VISTA?
April 14, 2021
(a) CNCS may provide official travel for a VISTA candidate or a VISTA, as appropriate, to attend CNCS-directed activities, such as pre-service training, placement at the project site, in-service training events, and return from the project site to home of record.
(b) CNCS must approve all official travel of a VISTA candidate or a VISTA, including the mode of travel.
(c) CNCS may provide for official emergency travel for a VISTA in case of a natural disaster or the critical illness or death of an immediate family member.