When submitting Form I-485 (Application to Register Permanent Residence or Adjust Status), one has to attach Form I-693 (Report of Medical Examination and Vaccination Record). Form I-693 expires after 2 years. If Form I-485 takes more than 2 years to be approved by the USCIS, Form I-693 expires and the USCIS will issue a Request for Evidence (RFE) asking for a new Form I-693. Can a Form I-485 applicant preemptively submit a new Form I-693 to the USCIS to avoid getting an RFE that would delay their Form I-485 approval, when Form I-485 is approaching its 2-year filing date?
Example of such an RFE: