[Q] What is the difference between RFE and NOID?
USCIS has stated:
Response: Both an RFE and NOID are notice of ineligibility. Pursuant to 8 CFR 103.2(b) and Section 10.5(a) of the Adjudicators Field Manual, an RFE may be issued when initial or additional evidence are missing. A NOID may be issued where USCIS has evidence of ineligibility or derogatory information. A NOID may also be issued based on a mandatory basis for denial.