5 U.S.C. § 3349d

(a) The submission to the Senate, during a recess or adjournment of the Senate in excess of 15 days, of a written notification by the President of the President’s intention to submit a nomination after the recess or adjournment shall be considered a nomination for purposes of sections 3345 through 3349c if such notification contains the name of the proposed nominee and the office for which the person is nominated. (b) If the President does not submit a nomination of the person named under subsection (a) within 2 days after the end of such recess or adjournment, effective after such second day the notification considered a nomination under subsection (a) shall be treated as a withdrawn nomination for purposes of sections 3345 through 3349c.