Robert Cy Mann seeks to appeal the district court’s orders denying his motion under 28 U.S.C. § 2255 (2000), and construing Mann’s Fed.R.Civ.P. 60(b) motion as a § 2255 motion and dismissing it as successive. The orders are not appealable unless a circuit justice or judge issues a certificate of appealability. 28 U.S.C. § 2253(c)(1) (2000); see Reid v. Angelone, 369 F.3d 363, 369 (4th Cir. 2004).

A certificate of appealability will not issue absent “a substantial showing of the denial of a constitutional right.” 28 U.S.C. *606 § 2253(c)(2) (2000). A prisoner satisfies this standard by demonstrating that reasonable jurists would find that his constitutional claims are debatable and that any dispositive procedural rulings by the district court are also debatable or wrong. See Miller-El v. Cockrell, 537 U.S. 322, 336, 123 S.Ct. 1029, 154 L.Ed.2d 931 (2003); Slack v. McDaniel, 529 U.S. 473, 484, 120 S.Ct. 1595, 146 L.Ed.2d 542 (2000); Rose v. Lee, 252 F.3d 676, 683 (4th Cir. 2001). We have independently reviewed the record and conclude that Mann has not made the requisite showing. Accordingly, we deny his motions for a certificate of appealability and dismiss the appeals.

To the extent that Mann’s notice of appeal and appellate brief with regard to the appeal of the denial of his Rule 60(b) motion can be construed as a motion for authorization to file a successive § 2255 motion, we deny such authorization. See United States v. Winestock, 340 F.3d 200, 208 (4th Cir.), cert, denied, — U.S. —, 124 S.Ct. 496, 157 L.Ed.2d 395 (2003). We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

DISMISSED