PER CURIAM: Ronald R. Harvey appeals his guilty plea conviction and sentence for being a felon in possession of a firearm. He argues that he was sentenced in violation of his plea agreement and that the district court erred in upwardly departing. For the first time on appeal, Harvey argues that the terms of his plea agreement were violated by (1) the district court’s upward departure from the advisory guideline range; (2) the Government’s failure to move for a third acceptance-of-responsibility credit; and (3) the district court’s failure to offer him the opportunity to withdraw his plea.

Affording his argument plain error review, United States v. Munoz, 408 F.3d 222, 226 (5th Cir.2005), we hold that the conduct of the district court and the Government was entirely consistent with the parties’ reasonable understanding of the agreement. See United States v. Wilder, 15 F.3d 1292, 1295 (5th Cir.1994). Consequently, his breach argument fails. Harvey additionally argues for the first time on appeal that the district court’s upward departure was erroneous. Affording this argument plain error review, United States v.

Jones, 444 F.3d 430, 436 (5th Cir.), cert. denied, — U.S.-, 126 S.Ct. 2958, 165 L.Ed.2d 970 (2006), we hold that Harvey has shown no error, plain or otherwise. To the extent that Harvey seeks to challenge the district court’s refusal to award him a two-level § 3E1.1 adjustment, that issue is inadequately briefed and is therefore waived. United States v. Thames, 214 F.3d 608, 611 n. 3 (5th Cir.2000). AFFIRMED. Pursuant to 5th Cir. R. 47.5, the court has determined that this opinion should not be published and is not precedent except under the limited circumstances set forth in 5th Cir. R. 47.5.4.