
    UNITED STATES of America, Plaintiff-Appellee, v. Khem UN, a/k/a Khem Roeutanck Un, Defendant-Appellant.
    No. 15-7383.
    United States Court of Appeals, Fourth Circuit.
    Submitted: Jan. 29, 2016.
    Decided: April 28, 2016.
    Khem Un, Appellant Pro Se. Marc Birn-baum, Scott Andrew Claffee, Special Assistant United States Attorneys, Mary Katherine Barr Daly, Assistant United States Attorney, Kellen Sean Dwyer, Adam Ptashkin, Michael R. Tregle, Anna A. Vla-sova, Office of the United States Attorney, Alexandria, Virginia, for Appellee.
    Before DUNCAN, DIAZ, and HARRIS, Circuit Judges.
   Dismissed by unpublished PER CURIAM opinion.

Unpublished opinions are not binding precedent in this circuit.

PER CURIAM:

Khem Un seeks to appeal the district court’s order denying relief on his 28 U.S.C. § 2255 (2012) motion. The order is not appealable unless a circuit justice or judge issues a certificate of appealability. 28 U.S.C. § 2253(c)(1)(B) (2012). A certificate of appealability will not issue absent “a substantial showing of the denial of a constitutional right.” 28 U.S.C. § 2253(c)(2) (2012). When the district court denies relief on the merits, a prisoner satisfies this standard by demonstrating that reasonable jurists would find that the district court’s assessment of the constitutional claims is debatable or wrong. Slack v. McDaniel, 529 U.S. 473, 484, 120 S.Ct. 1595, 146 L.Ed.2d 542 (2000); see Miller-El v. Cockrell, 537 U.S. 322, 336-38, 123 S.Ct. 1029, 154 L.Ed.2d 931 (2003). When the district court denies relief on procedural grounds, the prisoner must demonstrate both that the dispositive procedural ruling is debatable, and that the motion states a debatable claim of the denial of a constitutional right. Slack, 529 U.S, at 484-85, 120 S.Ct. 1595.

We have independently reviewed the record and conclude that Un has not made the requisite showing. Accordingly, we deny a certificate of appealability and dismiss the appeal. We dispense with oral argument because the facts and legal contentions are adequately presentéd in the materials before this court and argument would not aid the decisional process.

DISMISSED.  