MEMORANDUM **

Mehdi Tavassoli petitions for review of a decision of the Board of Immigration Appeals (BIA) dismissing an appeal of denial by an Immigration Judge (IJ) of an application for adjustment of status. We have jurisdiction under 8 U.S.C. § 1252, and deny the petition for review.

1. Tavassoli’s 1981 convictions for conspiracy to distribute heroin and possession of heroin with intent to distribute provided the BIA ample “reason to believe” that Tavassoli had been knowingly involved in drug trafficking and was therefore ineligible for adjustment of status. See 8 U.S.C. § 1182(a)(2)(C)(i) (providing that an alien is inadmissible if there is “reason to . believe” that he is or has been an “illicit trafficker in any controlled substance”); 8 U.S.C. § 1227(a)(1)(A) (“Any alien who at the time of ... adjustment of status was within one or more of the classes of aliens inadmissible by the law existing at such time is deportable.”).

2. Tavassoli’s claim that the IJ failed to make an explicit credibility finding regarding his testimony was not raised in the *616 opening brief and is waived. United States v. Ullah, 976 F.2d 509, 514 (9th Cir. 1992).

3. We reject Tavassoli’s contention that § 1182(a)(2)(C)(i) contains an ambiguous temporal limitation that must be construed in his favor. The statute has no such limitation, and we have applied it to conduct occurring years before an immigration proceeding. See, e.g., Lopez-Molina v. Ashcroft, 368 F.3d 1206, 1207 (9th Cir. 2004); Hamid v. INS, 538 F.2d 1389, 1390 (9th Cir. 1976) (per curiam).

DENIED.