9 FAM 40.21(b)a(2) includes the Lujan exception to controlled substances inadmissibility, but requires an advisory opinion before a Lujan exception will be granted. This FAM provision is found at http://www.state.gov/documents/organization/86942.pdf
Note that the FAM authors misunderstood and misstated the holding of Nunez-Reyes v. Holder, 646 F.3d 684 (Jul. 14, 2011), when they stated that "state judicial expungements that predate this decision can still be effective for immigration purposes in the Ninth Circuit." This is only partly correct. The correct summary of Nunez-Reyes on this point is that state judicial expungements for convictions that predate this decision can still be effective. That decision held: For those aliens convicted before the publication date of this decision, Lujan"Armendariz applies. For those aliens convicted after the publication date of this decision, Lujan"Armendariz is overruled. Id. at 694.
Thanks to Michael Mehr, who has requested the FAM editors to correct this error.