22 C.F.R. § 40.62
Failure to attend removal proceedings
An alien who without reasonable cause failed to attend, or to remain in attendance at, a hearing initiated on or after April 1, 1997, under INA 240 to determine inadmissibility or deportability shall be ineligible for a visa under INA 212(a)(6)(B) for five years following the alien's subsequent departure or removal from the United States.