On May 30, 2014, USCIS announced that effective June 1, 2014, Form I-693 Report of Medical Examination and Vaccination Record must be submitted within in one year of completion and signature by the civil surgeon, and will be valid for one year after submission to USCIS. (AILA Doc. No. 14053043). However, the medical examination form will no longer be required as initial evidence and may be submitted at any time after filing the immigration benefit application but prior to adjudication. If the medical examination form is not filed concurrently, USCIS encourages applicants to wait to until the medical examination form is requested by USCIS either through the issuance of a Request for Evidence (RFE) or through a notice to bring a completed medical examination form to the interview. USCIS will be holding a stakeholder engagement on June 12, 2014 to address questions related to the new policy (AILA Doc. No. 14053044). See the USCIS Policy Manual for a complete overview of Form I-693 guidance.
Source: “AILA InfoNet Doc. No. 14053045 (posted May. 30, 2014)”