Scary that a fed doesn't know how to Google:
https://www.theclassroom.com/are-dc-residents-eligible-for-virginia-in-state-tuition-13596821.html
Residents of the District of Columbia are generally ineligible for in-state tuition at public colleges in neighboring Virginia. There are a few exceptions, however, that make in-state tuition possible for temporary D.C. residents with a permanent address in Virginia and some D.C. residents who work in Virginia or are stationed there by the military.