Responsibilities
USCIS publishes form instructions, edition dates, fees and filing locations. A form’s name does not determine whether someone qualifies. Form I-485 concerns adjustment of status, Form I-589 asylum and related protection, and Form I-751 removal of marriage-based residence conditions. Each has its own eligibility and filing requirements.
What to distinguish
USCIS is not the immigration court. EOIR is part of the Department of Justice and conducts immigration-court proceedings. ICE and CBP have different enforcement and border responsibilities. Check official case notices rather than assuming that every immigration question belongs to USCIS.