8 CFR § 322.4
Interview
November 5, 2020
The U.S. citizen parent and the child must appear in person before a USCIS officer for examination on the application under this section. If the U.S. citizen parent is deceased, the child's U.S. citizen grandparent or U.S. citizen legal guardian who filed the application on the child's behalf must appear.
[76 FR 53799, Aug. 29, 2011]