https://www.uscis.gov/news/alerts/uscis-revises-interview-waiver-guidance-form-i-751
Pasricha & Patel Takeaways:
USCIS has published new guidance to clarify to the USCIS officers who are adjudicating the form I-751, petition to remove conditions on residence on when to consider waiving the interview requirement. Generally, the USCIS is supposed to interview a conditional permanent resident who is the principal petitioner on the form I-751, unless the interview is waived by the USCIS.