Since at least 2004, in response to backlogs in certain preference categories, USCIS has agreed to extend the validity of the civil surgeon’s endorsement on Form I-693 until the time of adjudication. This policy has generally been extended annually. The most recent extension was issued on September 4, 2013 and is set to expire on May 31, 2014. USCIS confirmed that effective June 1, Forms I-693 submitted to USCIS more than one year prior will no longer be valid. In anticipation of a change in policy, Requests for Evidence (RFE) are being sent to notify applicants that the Form I-693 they provided in support of their adjustment application is about to exceed its validity period.
USCIS has stated that a notice to the public on the impending change is in progress.