The time the I-601A waiver is processing with USCIS does not count against the one year rule.
USCIS notifies NVC that an I-601A waiver has been filed. NVC relies on this communication from
USCIS, not on communication from attorneys/applicants about the I-601A.
NVC won’t schedule an interview until the I-601A waiver is approved. However, if the applicant
provides NVC with all documents while the I-601A waiver is pending, and USCIS notifies NVC that
the I-601A waiver is denied, NVC will send the case to the Embassy for appointment.
NVC is notified by USCIS about decision on the I-601A waiver application.