Unpublished opinions are not binding precedent in this circuit. PER CURIAM: Anthony Ravon Ruffin seeks to appeal the district court’s order accepting the recommendation of the magistrate judge and denying relief on his 28 U.S.C. § 2255 (2012) motion and the order denying Ruf-fin’s motion to alter or amend the judgment. The orders are not appealable unless a circuit justice or judge issues a certificate of appealability. 28 U.S.C. § 2258(c)(1)(B) (2012). A certificate of ap-pealability 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 Ruffin has not made the requisite showing. Accordingly, although we grant Ruffin’s motions to file addendums to his informal brief, we deny his motions for a certificate of appealability and for appointment of counsel and dismiss the appeal.
We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before this court and argument would not aid the decisional process. DISMISSED