It appears to be an open question whether a waiver under INA 212(c) may currently be used to avoid inadmissibility under INA 212(a)(2)(C) (reason to believe noncitizen is a drug trafficker). On one hand, that ground of inadmissibility is not excepted from 212(c) eligibility under 8 C.F.R. 1212.3(f)(3). On the other hand, the regulations allow for 212(c) for "aliens who pleaded guilty or nolo contendere to certain crimes." 8 C.F.R. 1212.3(h).